1.x^2-xy-2y^22.x^2+7/4xy+5/8y^23.x^4-13x^2y^2+36^44.(x+a)^2-4x(a+x)+3x^25.(x^2-x)^2-14x^2+14x-24求高手相助,在这儿就先谢过了
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(x^2+xy/x-y)/(xy/x-y)计算
因式分解:8(x-2y)-x(7x+y)+xy.
1、(-7x^y)(2x^y-3xy^3+xy) 2、((x-y)^6)/((y-x)^3)/(x-y)
(-x-y)(x^2+xy+y^2)
化简x^-y^/x^-2xy+y^
2*(x-y)²(y-x)(xy)
1.(xy-1)^2-(x+y-2xy)(2-x-y)2.(x+y)(x+y+2xy)+(xy-1)(xy+1)
x^2-xy/xy-y^2约分
x^3y(-4y)^2+(-7xy)^2*(-xy)-5xy^3*(-3x)^2
.(x+y-2)(x+y-2xy)+(xy-1)^2
(x^2-xy)y÷y-x/xy怎么做?
代数 x^-y^/ x^-(y-z)^ 除以 x^+2xy+y^/(x-y)^-z^ 乘 x^+xy-xz/x^-xy
提取公因式法1.(x-2)^-x+22.x^2y(x-y)-xy^2(y-x)
(x+y)/x /(x-(2xy-y^2)/x) 因式分解
因式分解:x^2-xy-2y^2+x+7y
x^2-xy-2y^2+x+7y-6
x²+xy-2y²-x+7y-6
(xy-x²)÷(x²-2xy+y²/xy)×(x-y/x²)