因式分解16x^3y^2z^3-48x^4y^3z^2-96x^2y^2z^4
(x+2y-7z)^3+(3x-4y+6z)^3-(4x-2y-z)^3 因式分解
因式分解:25x y^2 z^2 (x+y-z)-30xyz(z-x-y)^2+5x y z^3 (z-x-y)
x=y/z=z/3,x+y+z =12,求2x+3y+4z是多少,
试证明(x+y-2z)+(y+z-2x)+(z+x-2y)=3(x+y-2z)(y+z-2x)(z+x-2y)
1.x+y=16,y+z=12,z+x=102.3x-y+z=4,2x+3y-z=12,x+y+z=63.x+y+z=6
因式分解 x^2(y+z)+y^2(z+x)+z^2(x+y)-(x^3+y^3+z^3)-2xyz
因式分解;(4x-3y)平方-16y平方;x平方+2x(y-z)+(z-y)平方;(a平方-a)平方(a-1)平方;
x/2=y/3=z/5 x+3y-z/x-3y+z
因式分解2(x^2y^2+y^2z^2+z^2x^2)-(x^4+y^4+z^4)
(4x-2y-z)-{5x[8y-2y-(x+y)]-x+(3y-10z)]=? kuai
1.(x+y-z)+(x-y+z)-(x-y-z) 2.2x-(3x-2y+3)-(5y-2)
分解因式:(x+y+z)^3+(3x-2y-3z)^3-(4x-y-2z)^3