作业帮[6(x-2)²+12(x+2)(x-2)-3(x-1)²(x-2)]÷[3(2-x)]
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/08 22:55:47
![[6(x-2)²+12(x+2)(x-2)-3(x-1)²(x-2)]÷[3(2-x)]](/uploads/image/z/754184-56-4.jpg?t=%5B6%28x-2%29%26%23178%3B%2B12%28x%2B2%29%28x-2%29-3%28x-1%29%26%23178%3B%28x-2%29%5D%C3%B7%5B3%282-x%29%5D)
[6(x-2)²+12(x+2)(x-2)-3(x-1)²(x-2)]÷[3(2-x)]
[6(x-2)²+12(x+2)(x-2)-3(x-1)²(x-2)]÷[3(2-x)]
[6(x-2)²+12(x+2)(x-2)-3(x-1)²(x-2)]÷[3(2-x)]
原式=-[6(x-2)²+12(x+2)(x-2)-3(x-1)²(x-2)]÷[3(x-2)]
=-［2(X-2)+4(X+2)-(X-1)^2］
=-［2X-4+4X+8-X^2+2X-1］
=X^2-8X+5.