题目

因式分解 ①3(y-x)²+2(x-y)
②4a(x-2)²-2b(2-x)³
③6x³y（x-y）³-4xy³（y-x）²
④a（x-y）-b(y-x)+c(x-y)
⑤m²（x-2）+(2-x)

提问时间：2020-07-24

答案

①3(y-x)²+2(x-y)=3(x-y)²+2(x-y)=(x-y)(3x-3y+2)②4a(x-2)²-2b(2-x)³=4a(x-2)²+2b(x-2)³=(x-2)²[4a+2b(x-2)]=(x-2)²(4a+2bx-4b)③6x³y（x-y）³-4xy³（y-x...