题目内容
(本题共2道小题,每小题5分,共10分)
(1)分解因式: (2)化简:(x+3y)2+(2x+y)(x-y).
(本题共2道小题,每小题5分,共10分)(1)分解因式: (2)化简:(x+3y)2+(2x+y)(x-y).