x ＾4+y＾4+z＾4-2x＾2 y＾2-2x＾2Z＾2+2y＾2z＾2
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x＾4+y＾4+z＾4-2x＾2y＾2-2x＾2Z＾2+2y＾2z＾2x＾4+y＾4+z＾4-2x＾2y＾2-2x＾2Z＾2+2y＾2z＾2x＾4+y＾4+z＾4-2x＾2y＾2-2x＾2Z＾2+2y
x ＾4+y＾4+z＾4-2x＾2 y＾2-2x＾2Z＾2+2y＾2z＾2
x ＾4+y＾4+z＾4-2x＾2 y＾2-2x＾2Z＾2+2y＾2z＾2
x ＾4+y＾4+z＾4-2x＾2 y＾2-2x＾2Z＾2+2y＾2z＾2
原式=
(y^2-z^2)^2+x^4-2x^2y^2-2x^2z^2
=
(x^2-y^2+z^2)^2
(x^2-y^2-z^2)^2
=(x^2-y^2-z^2)^2
已知x,y,z为非负实数,p=-3x+y+2z,q=x-2y+4z,x+y+z=1,求p＾２+q＾２的最大值
(x-y)^2+4z(x-y)+4z^2
x ＾4+y＾4+z＾4-2x＾2 y＾2-2x＾2Z＾2+2y＾2z＾2
化简-(-3x-y+2z)-{-x+【4x-(x-y-z)-3x+2z}
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x+y/2=z+x/3=y+z/4 x+y+z=27
数学--整式运算4(x-y+z)-2(x+y-z)-3(-x-y-z)
若x,y,z成等差数列,则(z-x)^2-4(x-y)(y-z)=
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(4x-2y-z)-{5x-[8y-2z-(x-2y)]-x-(3y-10z)}=?
已知整数x、y、z,满足x≤y＜z,且｜x+y｜+｜y+z｜+｜z+x｜=4,｜x-y｜+｜y-z｜+｜z-x｜=2,求x^2+y^2+z^2的值.
因式分解Z^2(x-y)-4(x-y)-3Z(y-z)
整数x、y、z满足x≤y＜z|x+y|+|y+z|+|z+x|=4|x-y|+|y-z|+|z-x|=2求x²+y²+z²
已知整数x,y,z满足x≤y＜z,且|x+y|+|y+z|+|z+x|=4 |x-y|+|y-z|+|z-x|=2 那么x²+y²+z²的值
求化简(x+3y+2z)(x-3y+6z)(x+3y+4z-2z)(x-3y+4z+2z)
x＾2-9y＾2+4z＾2+4xz