(x+1)^2+|y-1|+|z|=0
(x+1)^2=0 x+1=0 x=-1
y-1=0 y=1
z=0
A=2x^3-xyz=2*(-1)^3-0=-2
B=y^3-z^3+xyz=1^3-0+0=1
C=-x^3+2y^2-xyz=1+2*1-0=3
A-[2B-3(C-A)]
=-2-[2*1-3(3+2)]
=-2-2+15
=11
(x+1)^2+|y-1|+|z|=0
(x+1)^2=0 x+1=0 x=-1
y-1=0 y=1
z=0
A=2x^3-xyz=2*(-1)^3-0=-2
B=y^3-z^3+xyz=1^3-0+0=1
C=-x^3+2y^2-xyz=1+2*1-0=3
A-[2B-3(C-A)]
=-2-[2*1-3(3+2)]
=-2-2+15
=11