(-x+2x平方+5)+(4x平方-3-6x)的值

问题描述:

(-x+2x平方+5)+(4x平方-3-6x)的值

=-X+2X^2+5+4X^2-3-6X
=6X^2-7X+2
=(3X-2)(2X-1)

(-x+2x平方+5)+(4x平方-3-6x)
=6x²-7x+2