(x+2y)二次方-x-2y
问题描述:
(x+2y)二次方-x-2y
答
(x+2y)二次方-x-2y
=(x+2y)²-(x+2y)
=(x+2y)(x+2y-1)
答
(x+2y)二次方-x-2y
=(x+2y)二次方-(x+2y)
=(x+2y)(x+2y-1)