因式分解(简单) (18 22:16:52)-2X+6X2  -3X3                           X2(X-Y)+(Y-X)Y2

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/17 04:28:34
因式分解(简单) (18 22:16:52)-2X+6X2  -3X3                           X2(X-Y)+(Y-X)Y2
x){:{=O;^,_~Ou O{өah`ddehfejkmalhf`ka aNR!H#B7RS[#R7B3&HHqٌx!8cm&B(Fnk 򐭈3RjI82#n*T LhG" $فb J`8

因式分解(简单) (18 22:16:52)-2X+6X2  -3X3                           X2(X-Y)+(Y-X)Y2
因式分解(简单) (18 22:16:52)
-2X+6X2  -3X3                           X2(X-Y)+(Y-X)Y2

因式分解(简单) (18 22:16:52)-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)