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대수 예제
9(x+7)3(5x+8)3-(x+7)2(5x+8)49(x+7)3(5x+8)3−(x+7)2(5x+8)4
단계 1
단계 1.1
9(x+7)3(5x+8)39(x+7)3(5x+8)3에서 (x+7)2(5x+8)3(x+7)2(5x+8)3를 인수분해합니다.
(x+7)2(5x+8)3(9(x+7))-(x+7)2(5x+8)4(x+7)2(5x+8)3(9(x+7))−(x+7)2(5x+8)4
단계 1.2
-(x+7)2(5x+8)4−(x+7)2(5x+8)4에서 (x+7)2(5x+8)3(x+7)2(5x+8)3를 인수분해합니다.
(x+7)2(5x+8)3(9(x+7))+(x+7)2(5x+8)3(-1(5x+8))(x+7)2(5x+8)3(9(x+7))+(x+7)2(5x+8)3(−1(5x+8))
단계 1.3
(x+7)2(5x+8)3(9(x+7))+(x+7)2(5x+8)3(-1(5x+8))(x+7)2(5x+8)3(9(x+7))+(x+7)2(5x+8)3(−1(5x+8))에서 (x+7)2(5x+8)3(x+7)2(5x+8)3를 인수분해합니다.
(x+7)2(5x+8)3(9(x+7)-1(5x+8))(x+7)2(5x+8)3(9(x+7)−1(5x+8))
(x+7)2(5x+8)3(9(x+7)-1(5x+8))(x+7)2(5x+8)3(9(x+7)−1(5x+8))
단계 2
분배 법칙을 적용합니다.
(x+7)2(5x+8)3(9x+9⋅7-1(5x+8))(x+7)2(5x+8)3(9x+9⋅7−1(5x+8))
단계 3
99에 77을 곱합니다.
(x+7)2(5x+8)3(9x+63-1(5x+8))(x+7)2(5x+8)3(9x+63−1(5x+8))
단계 4
분배 법칙을 적용합니다.
(x+7)2(5x+8)3(9x+63-1(5x)-1⋅8)(x+7)2(5x+8)3(9x+63−1(5x)−1⋅8)
단계 5
55에 -1−1을 곱합니다.
(x+7)2(5x+8)3(9x+63-5x-1⋅8)(x+7)2(5x+8)3(9x+63−5x−1⋅8)
단계 6
-1−1에 88을 곱합니다.
(x+7)2(5x+8)3(9x+63-5x-8)(x+7)2(5x+8)3(9x+63−5x−8)
단계 7
9x9x에서 5x5x을 뺍니다.
(x+7)2(5x+8)3(4x+63-8)(x+7)2(5x+8)3(4x+63−8)
단계 8
6363에서 88을 뺍니다.
(x+7)2(5x+8)3(4x+55)(x+7)2(5x+8)3(4x+55)