要详细步骤!!2x方-7x+6 ,2x方-8x+6, 2x方-4x-6 , 2x方-x-6,
2x方+7x+6, -6x方-4x+2, x方y方-5x方y-6x方, x方-2x-2, x方-xy-2y方,
x方-(a+b)xy+aby方
要详细步骤!!2x方-7x+6 ,2x方-8x+6, 2x方-4x-6 , 2x方-x-6,
2x方+7x+6, -6x方-4x+2, x方y方-5x方y-6x方, x方-2x-2, x方-xy-2y方,
x方-(a+b)xy+aby方
因式分解都是一步完成的,哪有什么步骤...
比如第一个= (x-2)( 2x-3)
=(2x-3)(x-2) =(2x-2)(x-3) =(2x+2)(x-3) =(2x+3)(x-2)
2x方+7x+6, -6x方-4x+2, x方y方-5x方y-6x方,
=(2x+3)(x+2) =(2x+2)(-3x+1) =x^2(y^2-5y-6)
=x^2(y+1)(y-6)
x方-2x-2, x方-xy-2y方, x方-(a+b)xy+aby方
=(x+y)(x-2y) =(x-ay)(x-by)
(2x-3)(x-2)
(2x-2)(x-3)
(2x-6)(x+1)
(2x+3)(x-2)
(2x+3)(x+2)
-(6x+2)(x-1)
(x-6y)(x+y)
x方-2x-2无法分解
(x+y)(x-2y)
(x-ay)(x-by)
擦,你好赖word一下,接下图,传张图上来啊,这乱七八糟的谁看的懂啊。