2x^3-16y^35x^2-13xy-6y^2x^3+2x^2-10x-20-3x^3-12x^2+36x9-x^2+12^xy-36y^29s(s-1)-2t(6s-2t-3)6(m-n)^2-10m+10n-4-3y^4+10y^+83x^2y+28y^2+7xy^2+12xy

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2x^3-16y^35x^2-13xy-6y^2x^3+2x^2-10x-20-3x^3-12x^2+36x9-x^2+12^xy-36y^29s(s-1)-2t(6s-2t-3)6(m-n)^2-1

2x^3-16y^35x^2-13xy-6y^2x^3+2x^2-10x-20-3x^3-12x^2+36x9-x^2+12^xy-36y^29s(s-1)-2t(6s-2t-3)6(m-n)^2-10m+10n-4-3y^4+10y^+83x^2y+28y^2+7xy^2+12xy
2x^3-16y^3
5x^2-13xy-6y^2
x^3+2x^2-10x-20
-3x^3-12x^2+36x
9-x^2+12^xy-36y^2
9s(s-1)-2t(6s-2t-3)
6(m-n)^2-10m+10n-4
-3y^4+10y^+8
3x^2y+28y^2+7xy^2+12xy

2x^3-16y^35x^2-13xy-6y^2x^3+2x^2-10x-20-3x^3-12x^2+36x9-x^2+12^xy-36y^29s(s-1)-2t(6s-2t-3)6(m-n)^2-10m+10n-4-3y^4+10y^+83x^2y+28y^2+7xy^2+12xy
1.2(X^3-8Y^3)=2(X-2Y)(X^2+2XY+4Y^2)
2.(5X+2)(X-3Y)
3.X^2(X+2)-10(X+2)=(X^2-10)(X+2)
4.-3X(X^2+4X-12)=-3(X-2)(X+6)
5.9-(X-6Y)^2=(9+(X-6y))(9-(X-9Y))
6.9S^2-9S-12ST+4T^2+6T=(3S-2T)^2-3(3S-2T)
=(3S-2T)(3S-2T-3)
7.6(m-n)^2-10(m-n)-4=(6(M-N)+2)((M-N)-2)
3XY(X+4)+7Y^2(X+4)=(3XY+7Y^2)(X+4)

因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y) x^+2xy+y^+4=16 x^-2xy+y^=16 求(3xy+6y^)+|x^-(2xy+2y^-3x^)|的值 (x-2xy)*(-xy+2y*y)-(3x*x-2xy)(x-9xy+6y*y)答案应为-2x-x*x-3x， 2x²y-3(2xy-xy)-xy 因式分解 x-xy+3y-3x 2x+xy-y-4x+5y-6 化简：3x^2-[5xy-(x^y-3xy)+4x^2y-8xy] 计算：3xy[2xy-x（y-2）+x] 计算3xy[2xy-x(y-2)+x-1] （-3x^y+2xy)-( )=4x^+xy -xy^2(x+y)^3+x(x+y)^2因式分解 (x+3y)/(x^2+xy)-x+y计算题 X^Y-2XY^2+y^3 x*x+xy=3,xy+y*y=2,则x*x+2xy+y*y=________? X×X-2XY-Y×Y+2X-2Y+2=02X×2X-4XY-2Y×2Y+3X-3Y+4=0X×X+2XY+Y×Y+X+Y-56=0X×X-2XY+Y×Y-X+Y-12=0X×X-3XY+Y×Y=-13X×3X-XY+3Y×3Y=13 两个在一起的方程之间有所联系（要求一步一步写出来）（12x^2y-8xy^2+16xy）/-3x+2y-4=? (12x^2y-8xy^2+16xy）/-3x+2y-4=? （x^2+xy/x-y)/（xy/x-y)计算 1、(-7x^y)(2x^y-3xy^3+xy) 2、((x-y)^6)/((y-x)^3)/(x-y)