3x的平方-3y的平方+x-y,因式分解

2025-06-13 22:10:49
推荐回答(1个)
回答1:

3x^2-3y^2+x-y
=3(x^2-y^2)+(x-y)
=3(x+y)(x-y)+(x-y)
=(x-y)[3(x+y)+1]
=(x-y)(3x+3y+1)