初一 语文 因式分解（简单） 请详细解答,谢谢! (18 22:16:52)

来源：百度知道 编辑：UC知道 时间：2024/06/30 23:54:44
-2X+6X2  -3X3                           X2(X-Y)+(Y-X)Y2

-2X+6X^2-3X^3
=X(-2X+6X^2-3X^3)
=X(-2+6X-3X^2)
=-X(3X^2-6X+2)

X^2(X-Y)+(Y-X)Y^2
=X^2(X-Y)-(X-Y)Y^2
=(X-Y)(X^2-Y^2)
=(X-Y)(X-Y)(X+Y)
=(X-Y)^2(X+Y)

-2X+6X^2-3X^3
=-X(3X^2-6X+2)
=-X(3X^2-6X+3-1))
=-X[3(X-1)^2-1]
=-X(根号3倍的X-根号3+1)(根号3倍的X-根号3-1)

X^2(X-Y)+(Y-X)Y^2
=X^2(X-Y)-Y^2(X-Y)
=(X-Y)(X^2-Y^2)
=(X+Y)(X-Y)^2

语文？？？？？？？？？？？？？？？？？

1楼的答得很好哈，但为什么是语文叻?