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39 광고문의 0422 258 092, 0432 008 985 qldkoreanlife@gmail.com Simplify the followings (1-8) 1 − 8 + ( − 4 − 5) ( 6 , 7 학년 ) 2 5 − ( 3 − 10 ) ( 6 , 7 학년 ) 3 3 × 2 × ( − ) 4 × ( −2 ) 3 ( 8 학년 ) 4 3 − 2 −5 + 2 + 3( − + 5 ) ( 8 학년 ) 5 × ( −3 ) 2 × ( −2 ) 3 × ( −2 ) 2 × 5 ( 9 학년 ) 6 − 3 2 + 4 + 4 −3 − 3 − ( −5 − 2 ) ( 9 학년 ) 7 ( 3 ) 3 × ( −2 ) 2 × ( −4 2 ) 2 ( 10 학년 ) 8 ( −2 3 ) −2 × (3 −3 −3 ) −3 ÷ ( − 2 −5 2 ) 2 ( 10 학년 ) (9) The two positive integers are consecutive and their product is 272. Find the two numbers. 김선생수학알제브라연습문제 (268) ( Exercise of Algebra ) ( Answer ) 1 − 8 + − 4 − 5 = − 8 + − 9 = − 8 − 9 = − 17 2 5 − 3 − 10 = 5 − −7 = 5 + 7 = 12 3 3 × 2 × ( − ) 4 × ( −2 ) 3 = 3 × 2 × 4 × − 8 3 = − 24 5 5 4 3 − 2 −5 + 2 + 3( − + 5 ) = 3 + 10 − 4 − 3 + 15 = 10 + 11 5 × ( −3 ) 2 × ( −2 ) 3 × ( −2 ) 2 × 5 = × 9 2 × − 8 × 3 × 4 × 2 × 5 = 9 × − 8 × 4 × 5 1+3+1 2+2+1 = − 1440 5 5 6 − 3 2 + 4 + 4 −3 − 3 − ( −5 − 2 ) = −6 − 12 − 12 − 12 + 5 + 2 = − 6 − 12 + 5 + − 12 − 12 + 2 = −13 − 22 7 ( 3 ) 3 × ( −2 ) 2 × ( −4 2 ) 2 = 27 3 3 × 4 2 2 2 × 16 2 4 = (27 × 4 × 16) 3+2 3+2+2 2+4 = 1728 5 7 6 8 ( −2 3 ) −2 × (3 −3 −3 ) −3 ÷ ( − 2 −5 2 ) 2 = −2 × −2 3 × −2 × 3 −3 −3 × −3 −3 × −3 ÷ (( − 2) 2 −5 × 2 2 × 2 ) = (3 −3 ÷ ( − 2) 2 ) 4 −6 9 9 ÷ ( −10 4 ) = (1/108) 4+9− ( −10 ) −6+9−4 = (1/108) 23 −1 (9) rewrite 272 as product of its factors 272 = 2 × 136 = 4 × 68 = 8 × 34 = 16 × 17 Among product above, 16 and 17 are two consecutive integers. The two numbers are 16 and 17. 2022 역사와전통을자랑하는호주최고의제임스안학원이 미래를준비하며열심히노력하는학생여러분을기다립니다. 김선생 연습문제&풀이 Simpliify the followings (1-8) 1 − 8 + ( − 4 − 5) ( 6 , 7 학년 ) 2 5 − ( 3 10 ) ( 6 , 7 학년 ) 3 3 × 2 × ( − ) 4 × ( −2 ) 3 ( 8 학년 ) 4 3 − 2 −5 + 2 + 3( − + 5 ) ( 8 학년 ) 5 × ( −3 ) 2 × ( −2 ) 3 × ( −2 ) 2 × 5 ( 9 학년 ) 6 − 3 2 + 4 + 4 −3 − 3 − ( −5 − 2 ) ( 9 학년 ) 7 ( 3 ) 3 × ( −2 ) 2 × ( −4 2 ) 2 ( 10 학년 ) 8 ( −2 3 ) −2 × (3 −3 −3 ) −3 ÷ ( − 2 −5 2 ) 2 ( 10 학년 ) (9) The two positive integers are consecutive and their product is 272. Find the two numbers. 김선생수학알제브라연습문제 (268) ( Exercise of Algebra ) ( Answer ) 1 8 + − 4 − 5 − 8 + − 9 − 8 − 9 − 7 2 5 − 3 − 10 5 − −7 = 5 + 7 = 12 3 3 × 2 × ( − ) 4 × ( −2 ) 3 = 3 × 2 × 4 − 8 3 = − 24 5 5 4 3 − 2 −5 + 2 + 3( − + 5 ) = 3 + 10 − 4 − 3 + 15 = 10 + 11 5 × ( −3 ) 2 × ( −2 ) 3 × ( −2 ) 2 × 5 = × 9 2 × − 8 × 3 × 4 × 2 × 5 = 9 × − 8 × 4 × 5 1+3+1 2+2+1 = − 1440 5 5 6 − 3 2 + 4 + 4 −3 − 3 − ( −5 − 2 ) = −6 − 12 − 12 − 12 + 5 + 2 = − 6 − 12 + 5 + − 12 − 12 + 2 = −13 − 22 7 ( 3 ) 3 × ( −2 ) 2 × ( −4 2 ) 2 = 27 3 3 × 4 2 2 2 × 16 2 4 = (27 × 4 × 16) 3+2 3+2+2 2+4 = 1728 5 7 6 8 ( −2 3 ) −2 × (3 −3 −3 ) −3 ÷ ( − 2 −5 2 ) 2 = −2 × −2 3 × −2 × 3 −3 −3 × −3 −3 × −3 ÷ (( − 2) 2 −5 × 2 2 × 2 ) = (3 −3 ÷ ( − 2) 2 ) 4 −6 9 9 ÷ ( −10 4 ) = (1/108) 4+9− ( −10 ) −6+9−4 = (1/108) 23 −1 Simplify the followings (1-8) 1 − 8 + ( − 4 − 5) ( 6 , 7 학년 ) 2 5 − ( 3 − 10 ) ( 6 , 7 학년 ) 3 3 × 2 × ( − ) 4 × ( −2 ) 3 ( 8 학년 ) 4 3 − 2 −5 + 2 + 3( − + 5 ) ( 8 학년 ) 5 × ( −3 ) 2 × ( −2 ) 3 × ( −2 ) 2 × 5 ( 9 학년 ) 6 − 3 2 + 4 + 4 −3 − 3 − ( −5 − 2 ) ( 9 학년 ) 7 ( 3 ) 3 × ( −2 ) 2 × ( −4 2 ) 2 ( 10 학년 ) 8 ( −2 3 ) −2 × (3 3 −3 ) −3 ÷ ( − 2 −5 2 ) 2 ( 10 학년 ) (9) The two positive integers are consecutive and their product is 272. Find the two numbers. 김선생수학알제브라연습문제 (268) ( Exercise of Algebra ) ( Answer ) 1 − 8 + − 4 − 5 = − 8 + − 9 = − 8 − 9 = − 17 2 5 − 3 − 10 = 5 − −7 = 5 + 7 12 3 3 × 2 × ( − ) 4 × ( −2 ) 3 = 3 × 2 × 4 × − 8 3 = − 24 5 5 4 3 − 2 −5 + 2 + 3( − + 5 ) = 3 + 10 − 4 − 3 + 15 = 10 + 11 5 × ( −3 ) 2 × ( −2 ) 3 × ( −2 ) 2 × 5 = × 9 2 × − 8 × 3 × 4 × 2 × 5 = 9 × − 8 × 4 × 5 1+3+1 2+2+1 = − 1440 5 5 6 − 3 2 + 4 + 4 −3 − 3 − ( −5 − 2 ) = −6 − 12 − 12 − 12 + 5 + 2 = − 6 − 12 + 5 + − 12 − 12 + 2 = −13 − 22 7 ( 3 ) 3 × ( −2 ) 2 × ( −4 2 ) 2 = 27 3 3 × 4 2 2 2 × 16 2 4 = (27 × 4 × 16) 3+2 3+2+2 2+4 = 1728 5 7 6 Simplify the followings (1-8) 1 − 8 + ( − 4 − 5) ( 6 , 7 학년 ) 2 5 − ( 3 − 10 ) ( 6 , 7 학년 ) 3 3 × 2 × ( − ) 4 × ( −2 ) 3 ( 8 학년 ) 4 3 − 2 −5 + 2 + 3( − + 5 ) ( 8 학년 ) 5 × ( −3 ) 2 × ( −2 ) 3 × ( −2 ) 2 × 5 ( 9 학년 ) 6 − 3 2 + 4 + 4 −3 − 3 − ( −5 − 2 ) ( 9 학년 ) 7 ( 3 ) 3 × ( −2 ) 2 × ( −4 2 ) 2 ( 10 학년 ) 8 ( −2 3 ) −2 × (3 −3 −3 ) −3 ÷ ( − 2 −5 2 ) 2 ( 10 학년 ) (9) The two positive integers are consecutive and their product is 272. Find the two numbers. 김선생수학알제브라연습문제 (268) ( Exercise of Algebra ) ( Answer ) 1 − 8 + − 4 − 5 = − 8 + − 9 − 8 − 9 − 17 2 5 − 3 10 5 − −7 5 + 7 = 12 3 3 × 2 × ( − ) 4 × ( −2 ) 3 = 3 × 2 × 4 × − 8 3 = − 24 5 5 4 3 − 2 −5 + 2 + ( − + 5 ) = 3 + 10 − 4 − 3 + 15 = 10 + 11 5 × ( −3 ) 2 × ( −2 ) 3 × ( −2 ) 2 × 5 = × 9 2 × − 8 × 3 × 4 × 2 × 5 9 × 8 × 4 × 5 1+3+1 2+2+1 − 440 5 5 6 − 3 2 + 4 + 4 −3 − 3 − ( −5 − 2 ) = −6 − 12 − 12 − 12 + 5 + 2 = − 6 − 12 + 5 + − 12 − 12 + 2 = −13 − 22 7 ( 3 ) 3 × ( −2 ) 2 × ( −4 2 ) 2 = 27 3 3 × 4 2 2 2 × 16 2 4 = (27 × 4 × 16) 3+2 3+2+2 2+4 1728 5 7 6 8 ( −2 3 ) −2 × (3 −3 −3 ) −3 ÷ ( − 2 −5 2 ) 2 = −2 × −2 3 × −2 × 3 −3 −3 × −3 −3 × −3 ÷ (( − 2) 2 −5 × 2 2 × 2 ) = (3 −3 ÷ ( − ) 2 ) 4 −6 9 9 ÷ ( −10 4 ) = (1/108) 4+9− ( −10 ) −6+9−4 = (1/108) 23 −1 (9) rewrite 272 as product of its factors 272 = 2 × 136 = 4 × 68 = 8 × 34 = 16 × 17 Among product above, 16 and 17 are two consecutive integers. The two numbers are 6 and 17. Simplify the followings (1-8) 1 − 8 + ( 4 − 5) ( 6 , 7 학년 ) 2 5 − ( 3 − 10 ) ( 6 , 7 학년 ) 3 3 × 2 × ( − ) 4 × ( −2 ) 3 ( 8 학년 ) 4 3 − 2 −5 + 2 + 3( + 5 ) ( 8 학년 ) 5 × ( −3 ) 2 × ( −2 ) 3 × ( −2 ) 2 × 5 ( 9 학년 ) 6 − 3 2 + 4 + 4 −3 − 3 − ( −5 − 2 ) ( 9 학년 ) 7 ( 3 ) 3 × ( −2 ) 2 × ( −4 2 ) 2 ( 10 학년 ) 8 ( −2 3 ) −2 × (3 −3 −3 ) −3 ÷ ( − 2 −5 2 ) 2 ( 10 학년 ) (9) The two positive integers are consecutive and their product is 272. Find the two numbers. 김선생수학알제브라연습문제 (268) ( Exercise of Algebra ) ( Answer ) 1 − 8 + − 4 − 5 − 8 − 9 − 8 9 = − 17 2 5 − 3 − 10 = 5 − −7 = 5 + 7 = 12 3 3 × 2 × ( − ) 4 × ( −2 ) 3 = 3 × 2 × 4 × − 8 3 = − 24 5 5 4 3 − 2 −5 + 2 + 3( − + 5 ) 3 + 10 − 4 − 3 + 15 = 10 + 11 5 × ( −3 ) 2 × ( −2 ) 3 ( −2 ) 2 × 5 = × 9 2 × − 8 × 3 × 4 × 2 × 5 = 9 × − 8 × 4 × 5 1+3+1 2+ +1 = − 1440 5 5 6 − 3 2 + 4 + 4 −3 − 3 − ( −5 − ) −6 − 12 − 12 − 12 + 5 + 2 − 6 − 12 + 5 + − 12 − 12 + 2 = −13 − 22 7 ( 3 ) 3 × ( −2 ) 2 × ( −4 2 ) 2 = 27 3 3 × 4 2 2 2 × 16 2 4 = (27 × 4 × 16) 3+2 3+2+2 2+4 = 1728 5 7 6 8 ( −2 3 ) −2 × (3 −3 −3 ) −3 ÷ ( − 2 −5 2 ) 2 = −2 × −2 3 × −2 × 3 −3 −3 × −3 −3 × −3 ÷ (( − 2) 2 −5 × 2 2 × 2 ) = (3 −3 ÷ ( − 2) 2 ) 4 −6 9 9 ÷ ( −10 4 ) = (1/108) 4+9− ( −10 ) −6+9−4 = (1/108) 23 −1 (9) rewrite 272 as product of its factors 272 = 2 136 = 4 × 68 = 8 × 34 = 16 × 17 Among product above, 16 and 17 are two consecutive integers. The two numbers are 16 and 17. Simplify the followings (1-8) 1 − 8 + ( 4 − 5) ( 6 , 7 학년 ) 2 5 − ( − 10 ) ( 6 , 7 학년 ) 3 3 × 2 × ( − ) 4 × ( −2 ) 3 ( 8 학년 ) 4 3 − 2 −5 + 2 + 3( − + 5 ) 8 ) 5 × ( −3 ) 2 × ( −2 ) 3 × ( −2 ) 2 × 5 ( 9 학년 ) 6 − 3 2 + 4 + 4 −3 − 3 − ( −5 − 2 ) ( 9 학년 ) 7 ( 3 ) 3 × ( −2 ) 2 × 4 2 ) 2 10 학년 ) 8 ( −2 3 ) −2 × (3 −3 −3 ) −3 ÷ ( − 2 −5 2 ) 2 ( 10 학년 ) (9) The two positive integers are consecutive and their product is 272. Find the two numbers. 김선생수학알제브라연습문제 (268) ( Exercise of Algebra ) ( Answerr ) 1 8 + − 4 − 5 8 + − 9 = − 8 − 9 = − 17 2 5 − 3 − 10 5 − −7 5 + 7 12 3 3 × 2 × ( − ) 4 × ( −2 ) 3 = 3 × 2 × 4 × − 8 3 24 5 5 4 3 − 2 5 + 2 + 3( − + 5 ) = 3 + 10 − 4 − 3 + 15 = 10 + 11 5 × ( −3 ) 2 × ( −2 ) 3 × ( −2 ) 2 × 5 × 9 2 × − 8 × 3 × 4 × 2 × 5 9 × − × 4 × 5 1+3+1 2+2+1 − 1440 5 5 6 − 3 2 + 4 + 4 −3 − 3 − ( −5 − 2 ) −6 − 12 − 12 − 12 + 5 + 2 = − 6 − 12 + 5 + − 12 − 12 + 2 = −13 − 22 7 ( 3 ) 3 ( 2 ) 2 × ( −4 2 ) 2 = 27 3 3 × 2 2 2 × 16 2 4 = (27 × 4 × 16) 3+2 3+2+2 2+4 = 1728 5 7 6 8 ( −2 3 ) − × (3 −3 −3 ) −3 ÷ ( − 2 −5 2 ) 2 = −2 × −2 3 × −2 × 3 −3 −3 × −3 −3 × −3 ÷ (( − 2) 2 −5 × 2 2 × 2 ) = (3 −3 ÷ ( − 2) 2 ) 4 −6 9 9 ÷ ( −10 4 ) (1/108) 4+9− ( −10 ) −6+9−4 (1/108) 23 −1 (9) rewrite 272 as product of its factors 272 = 2 × 136 = 4 × 68 = 8 × 34 = 16 × 17 Among product above, 16 and 17 are two consecutive integers. The two numbers are 16 and 17. Simplify the followings (1-8) 1 − 8 + ( − 4 − 5) ( 6 , 7 학년 ) 2 5 − ( 3 − 10 ) ( 6 , 7 학년 ) 3 3 × 2 × ( − ) 4 × ( −2 ) ( 8 학년 ) 4 3 − 2 −5 + 2 + 3( − + 5 ) ( 8 학년 ) 5 × ( −3 ) 2 × ( −2 ) 3 × ( −2 ) 2 × 5 ( 9 학년 ) 6 − 3 2 + 4 + 4 −3 − 3 − ( −5 − 2 ) ( 9 학년 ) 7 ( 3 ) 3 × ( −2 ) 2 × ( −4 2 ) 2 ( 10 학년 ) 8 ( −2 3 ) −2 × (3 −3 −3 ) −3 ÷ ( − 2 −5 2 ) 2 ( 10 학년 ) (9) The two positive integers are consecutive and their product is 272. Find the two numbers. 김선생수학알제브라연습문제 (268) ( Exercise of Algebra ) ( Answer ) 1 − 8 + − 4 − 5 − 8 + − 9 = − 8 − 9 = − 17 2 5 − 3 − 10 = 5 − −7 = 5 + 7 = 12 3 3 × 2 × ( − ) 4 × ( −2 ) 3 = 3 × 2 × 4 × − 8 3 = − 24 5 5 4 3 − 2 −5 + 2 + 3( − + 5 ) = 3 + 10 − 4 − 3 + 15 = 10 + 11 5 × ( 3 ) 2 × ( −2 ) 3 × ( 2 ) 2 × 5 = × 9 2 × − 8 × 3 × 4 × 2 × 5 = 9 × − 8 × 4 × 5 1+3+1 2+2+1 = − 1440 5 5 6 − 3 2 + 4 + 4 −3 − 3 − ( −5 − 2 ) −6 − 12 − 12 − 12 + 5 + 2 = − 6 − 12 + 5 + − 12 − 12 + 2 Simplify the followings (1-8) 1 − 8 + ( − 4 − 5) ( 6 , 7 학년 ) 2 5 − ( 3 − 10 ) ( 6 , 7 학년 ) 3 3 × 2 × ( − ) 4 × ( −2 ) 3 ( 8 학년 ) 4 3 − 2 −5 + 2 + 3( − + 5 ) ( 8 학년 ) 5 × ( −3 ) 2 × ( −2 ) 3 × ( −2 ) 2 × 5 ( 9 학년 ) 6 − 3 2 + 4 + 4 −3 − 3 − ( −5 − 2 ) ( 9 학년 ) 7 ( 3 ) 3 × ( −2 ) 2 × ( −4 2 ) 2 ( 10 학년 ) 8 ( −2 3 ) −2 × (3 −3 −3 ) −3 ÷ ( − 2 −5 2 ) 2 ( 10 학년 ) (9) The two positive integers are consecutive and their product is 272. Find the two numbers. 김선생수학알제브라연습문제 (268) ( Exercise of Algebra ) ( Answer ) 1 − 8 + − 4 − 5 = − 8 + − 9 = − 8 − 9 − 17 2 5 − 3 − 10 = 5 − −7 = 5 + 7 = 1 3 3 × 2 × ( − ) 4 × ( −2 ) 3 3 × 2 × 4 × − 8 3 = − 24 5 5 4 3 − 2 −5 + 2 + 3( − + 5 ) = 3 + 10 − 4 − 3 + 15 = 10 + 11 5 × ( 3 ) 2 × ( −2 ) 3 × ( 2 ) 2 × 5 Simplify the folloowings (1-8) 1 − 8 + ( 4 − 5) ( 6 , 7 학년 ) 2 5 − ( 3 − 10 ) ( 6 , 7 학년 ) 3 3 × 2 × ( − ) 4 × ( −2 ) 3 ( 8 학년 ) 4 − 2 −5 + 2 + 3( − + 5 ) ( 8 ) 5 × ( −3 ) 2 × ( −2 ) 3 × ( −2 ) 2 × 5 ( 9 학년 ) 6 − 3 2 + 4 + 4 −3 − 3 − ( −5 − 2 ) ( 9 학년 ) 7 ( 3 ) 3 × ( −2 ) 2 × ( −4 2 ) 2 ( 10 학년 ) 8 ( −2 3 ) −2 × (3 −3 −3 ) −3 ÷ ( − 2 −5 2 ) 2 ( 10 학년 ) (9) The two positive integers are consecutive and their product is 272. Find the two numbers. 김선생수학알제브라연습문제 (268) ( Exercise of Algebra ) ( Answer ) 1 − 8 + − 4 − 5 = − 8 + 9 = − 8 − 9 = − 17 2 5 − − 10 = 5 − −7 = 5 + 7 = 12 3 3 × 2 × ( − ) 4 × ( −2 ) 3 = 3 × 2 × 4 × − 8 3 24 ⓒ본광고이미지는코리안라이프가제작하였습니다. *정답은40p에있습니다.