化简-x∧3-xy∧2+ 2x∧2y/x∧3-y∧2x
化简-x∧3-xy∧2+ 2x∧2y/x∧3-y∧2x
(-1/3xy)∧2*[3xy(2x-y)-3x(2xy-4y∧2)]
化简:x-y/x+3y÷x^-y^2/x^2+6xy+9y^2-(xy/x+y)
化简&因式分解化简:898*902+4因式分解:1)x∧2+2xy+y∧2-x-y2)3x∧2y-6xy+3y
分解因式2y∧2+3xy+x∧2+3+4x+7y
[x(x^2y^2-xy)-y(x^2-x^3y)]/3x^2y
分解因式:(X+Y-2XY)*(X+Y-2)+(1-XY)∧2
4x∧2y-[6xy-3(4xy-2)+4x∧2y]+1
因式分解25(x-y)∧2+10(y-x)+1 3x∧3-12x∧2y+12xy∧2
(x-2xy)*(-xy+2y*y)-(3x*x-2xy)(x-9xy+6y*y)
1、(-7x^y)(2x^y-3xy^3+xy) 2、((x-y)^6)/((y-x)^3)/(x-y)
(x+y)(x-y)-(2xy+3y)平方