x立方-4x+3x平方-124x平方-4xy+4x-2y+y平方

问题描述:

x立方-4x+3x平方-12
4x平方-4xy+4x-2y+y平方

x³-4x+3x²-12
原式=x³+3x²-4x-12
=x²(x+3)-4(x+3)
=(x²-4)(x+3)
=(x+2)(x-2)(x+3)
4x²-4xy+4x-2y+y²
原式=4x²-4xy+y²+4x-2y
=(2x-y)²+2(2x-y)
=(2x-y)(2x-y+2)

x立方-4x+3x平方-12
=x^2(x+3)-4(x+3)
=(x+3)(x^2-4)
=(x+3)(x+2)(x-2)
4x平方-4xy+4x-2y+y平方
=(2x-y)^2+2(2x-y)
=(2x-y)(2x-y+2)

x立方-4x+3x平方-12
=x²(x+3)-4(x+3)
=(x+3)(x²-4)
=(x+3)(x+2)(x-2)
4x平方-4xy+4x-2y+y平方
=(2x-y)²+2(2x-y)
=(2x-y)(2x-y+2)