来自李浙昆的问题
x^2-6xy+9y^2-3x+9y+2越快越好!因式分解
x^2-6xy+9y^2-3x+9y+2越快越好!
因式分解
1回答
2020-01-16 18:07
x^2-6xy+9y^2-3x+9y+2越快越好!因式分解
x^2-6xy+9y^2-3x+9y+2越快越好!
因式分解
x^2-6xy+9y^2-3x+9y+2
=(x-3y)^2-3(x-2y)+2
=(x-2y-1)(x-3y-2)