4x^3-16x^2y+16xy^2(x²-2y)²-(1-2y)²x^4-8x²y²+16y^4
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x^+2xy+y^+4=16 x^-2xy+y^=16 求(3xy+6y^)+|x^-(2xy+2y^-3x^)|的值
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-xy+3y-3x 2x+xy-y-4x+5y-6
因式分解30题(要过程)am+an+bm+bn x^2+5y-xy-5x x2+xy+2xz+x (a+b)x-(b+a)y -12x(x-y)-(y-x)x^2 2x^2+4x+2 x(x+z)-y(y+z) 2(x^2-3ab)+x(4a-3b) 4x^2+12xy+9y^2-25 x^4-16 16x^4-1 x^2+9x+8 x^2-10xy+24y^2 2x^2+15xy-8y^2 3x^2-6xy+3y^2 24x^2+22x-21 -x^2+4xy-
已知2x-3根号xy-2y=0(x>0),求x^2+4xy-16y^2/x^2+xy-9y^2
化简:3x^2-[5xy-(x^y-3xy)+4x^2y-8xy]
(-3x^y+2xy)-( )=4x^+xy
因式分解-x^3+2x^2y-xy^2和16(x-y)^2-9(x+y)^2和(x+2)(x+4)+x^2-4
下列因式分解中,正确的是:.A.-2x^3-3xy^3+xy=-xy(2x^2-2y^2+1).B.-x^2-y^2=-(x+y)(x-y)C.16x^2+4y^2-16xy=4(2x-y)D.x^2)y+2xy+4y=y(x+2)^2
计算(1)3x/8y×16y²/27x² (2)(2xy-x²)÷x-2y/xy 2x-6/x²-4x+4×2x-4/x-3
计算3x/8y×16y²/27x² (2xy-x²)÷x-2y/xy 2x-6/x²-4x+4×2x-4/x-3
化简2(x²y+xy)-3(x²y-xy)-4x²y
x²/xy-x/y 3x/4x+y - x-2y/4x+y (1-y/y+x)÷x/y²-x²
已知x+y=1,xy=3/16,求x³y-2x²y²+xy³
(x-2xy)*(-xy+2y*y)-(3x*x-2xy)(x-9xy+6y*y)答案应为-2x-x*x-3x,
因式分解:x(y-3)-(2y-6) (x+y)^3-(x-y)^2(x+y) x(x^2-xy)-(4x^2-4xy)