x^2-3xy-10y^2+x+9y-2
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x^2-3xy-10y^2+x+9y-2x^2-3xy-10y^2+x+9y-2x^2-3xy-10y^2+x+9y-2添项、拆项,得x^2-3xy-10y^2+x+9y-2=(x+2y)(x-5y)
x^2-3xy-10y^2+x+9y-2
x^2-3xy-10y^2+x+9y-2
x^2-3xy-10y^2+x+9y-2
添项、拆项,得
x^2-3xy-10y^2+x+9y-2
=(x+2y)(x-5y)+2x+4y-x+5y-2
=(x+2y)(x-5y)+2(x+2y)-(x-5y+2)
=(x+2y)(x-5y+2)-(x-5y+2)
=(x+2y-1)(x-5y+2)
化简:x-y/x+3y÷x^-y^2/x^2+6xy+9y^2-(xy/x+y)
(x-2xy)*(-xy+2y*y)-(3x*x-2xy)(x-9xy+6y*y)答案应为-2x-x*x-3x,
因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y)
(x^2y-9y)/(xy+3y)
X^Y-2XY^2+y^3
1、(-7x^y)(2x^y-3xy^3+xy) 2、((x-y)^6)/((y-x)^3)/(x-y)
因式分解 x-xy+3y-3x 2x+xy-y-4x+5y-6
[x(x^2y^2-xy)-y(x^2-x^3y)]/(2x^2y)
[x(x^2y^2-xy)-y(x^2-x^3y)]/3x^2y
[x(x^2y^2-xy)-y(x^2-x^3y)]/3x^2y
(-x-y)(x^2+xy+y^2)
化简x^-y^/x^-2xy+y^
2*(x-y)²(y-x)(xy)
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