x^2+xy-6y^2-3x+6y
问题描述:
x^2+xy-6y^2-3x+6y
答
=(x+3y)(x-2y)-3(x-2y)
=(x-2y)(x+3y-3)
x^2+xy-6y^2-3x+6y
=(x+3y)(x-2y)-3(x-2y)
=(x-2y)(x+3y-3)