来自罗国涛的问题
因式分解8(x^2-2y*2)-x(7x+y)+xy
因式分解8(x^2-2y*2)-x(7x+y)+xy


因式分解8(x^2-2y*2)-x(7x+y)+xy
因式分解8(x^2-2y*2)-x(7x+y)+xy
8(x^2-2y*2)-x(7x+y)+xy
=8x²-16y²-7x²-xy+xy
=x²-(4y)²
=(x-2y)(x+2y)
希望能帮到你,祝学习进步O(∩_∩)O