-2x^2y+12xy-16y/16y^2-16xy^2+4x^2y^2怎么约分
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-2x^2y+12xy-16y/16y^2-16xy^2+4x^2y^2怎么约分-2x^2y+12xy-16y/16y^2-16xy^2+4x^2y^2怎么约分-2x^2y+12xy-16y/16y^
-2x^2y+12xy-16y/16y^2-16xy^2+4x^2y^2怎么约分
-2x^2y+12xy-16y/16y^2-16xy^2+4x^2y^2怎么约分
-2x^2y+12xy-16y/16y^2-16xy^2+4x^2y^2怎么约分
-2x^2y+12xy-16y/16y^2-16xy^2+4x^2y^2
=-2y(x²-6x+8)/4y²(4-4x+x²)
=-2y(x-2)(x-4)/4y²(x-2)²
=(4-x)/2y(x-2)
因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y)
(12x^2y-8xy^2+16xy)/-3x+2y-4=?
(12x^2y-8xy^2+16xy)/-3x+2y-4=?
因式分解-x^2y+8xy^2-16y^3
x^+2xy+y^+4=16 x^-2xy+y^=16 求(3xy+6y^)+|x^-(2xy+2y^-3x^)|的值
(-x-y)(x^2+xy+y^2)
化简x^-y^/x^-2xy+y^
2*(x-y)²(y-x)(xy)
已知x+y=-10,xy=16求x²+y²,(x-y)²,(x+2)(y+2),x²-xy+y².求值!
已知x^2+xy=16 y^2+xy=9 求(x+y) (x-y)分别是 x+y x-y 不是乘
-2x^2y+12xy-16y/16y^2-16xy^2+4x^2y^2怎么约分
16y²-16xy²+4x²y²/﹣2x²y+12xy-16y 约分求解下,
(-4x^2y^2+12x^3y^2-16x^4y^4)/(-2xy)^2急求
x^2-4xy+4y^2=16(x+y)^2-x-y-12=0
X-Y/2X+2Y XY/X+Y²
合并同类项16x^2y-7(xy^2+xy-x^2+7y^2
因式分解:x×x-xy-2y×y-x-y
已知x+y=1,xy=3/16,求x³y-2x²y²+xy³