(x-2y+3)(x+2y-3) 分解因式

2025-06-21 08:57:59
推荐回答(2个)
回答1:

x^2-(2y-3)^2     望采纳

回答2:

(x-2y+3)(x+2y-3)
=[x-(2y-3)][x+(2y-3)]
=x²-(2y-3)²
=x²-4y²+12y-9