因式分解4x^-xy-2y^
问题描述:
因式分解4x^-xy-2y^
答
x是几次方?y几次方?
答
4x-xy-2y
=(4-y)y-2y
=(4-2-y)y
=(2-y)y
答
4x-xy-2y
=(4-y)y-2y
=(4-2-y)y
=(2-y)y
答
(2x^-2y)(2x+y)