x*x+xy -6y*y+x+13y-6 因式分解
问题描述：
x*x+xy -6y*y+x+13y-6 因式分解
答
答”
x^2+xy-6y^2+x+13y-6
=x^2+(y+1)x-(6y^2-13y+6)
=x^2+(y+1)x-(3y-2)(2y-3)
=[x+(3y-2)]*[x-(2y-3)]
=(x+3y-2)(x-2y+3)