化简-x∧3-xy∧2+ 2x∧2y/x∧3-y∧2x

化简-x∧3-xy∧2+ 2x∧2y/x∧3-y∧2x 已知x+y=6,xy=-3,则x∧y+xy∧2= 化简x^-y^/x^-2xy+y^ 化简：3x^2-[5xy-(x^y-3xy)+4x^2y-8xy] 化简：x-y/x+3y÷x^-y^2/x^2+6xy+9y^2-(xy/x+y) (-1/3xy)∧2*[3xy(2x-y)-3x(2xy-4y∧2)] 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 化简2(x²y+xy)-3(x²y-xy)-4x²y 化简(3x^2-5xy)+{-x^2-[-3xy+2(x^2-xy)+y^2]} 2(x∧2－xy)-3（2x∧2-3xy)-2[x∧2(2x∧2-xy+y∧2)] 因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y) (x-2xy)*(-xy+2y*y)-(3x*x-2xy)(x-9xy+6y*y)答案应为-2x-x*x-3x， -xy^2(x+y)^3+x(x+y)^2因式分解 (x+3y)/(x^2+xy)-x+y计算题 2x∧2+3xy+y∧2-x-2y-3因式分解,要过程 因式分解2x∧2-5xy+2y∧2+3x-3y+1 .因式分解x∧2-3xy+2y∧2+4x-7y+3 分解因式2y∧2+3xy+x∧2+3+4x+7y