因式分解x^3+yx^2-(7+2y)x+y^2+5y+6
合并同类项:6x^2y+2xy-3x^2y^2-7x-5yx-4y^2x^2-6x^2y
跪求-3y²-2yx+x²因式分解的详细过程T^T!
因式分解3x^2(x-y)+6x(y-x)
6x²y+2xy-3x²y²-7x-5yx-4y²x²-6x²
求6x²y+2xy-3x²y²-7x-5yx-4y²x²-6x
(x-y)^2-(x-y)^3因式分解
(x+y)^2-3(x-y)因式分解
y^2-x^2\5x^2-4yx除以x+y\5x-4y
若|x-y+3|与|x+y-1999|互为相反数,求x+2yx−y
6(x+y)2-2(x-y)(x+y)因式分解
6x(x-y)^2+3(y-x)^3 因式分解
已知x-3y=0,求2x+yx