(-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
答
=-X+2X^2+5+4X^2-3-6X
=6X^2-7X+2
=(3X-2)(2X-1)
答
(-x+2x平方+5)+(4x平方-3-6x)
=6x²-7x+2