1.如果|x-1|+|y+2|+|Z-3|=0,则(x+1)(y-2)(Z+3)的值是( ).A.48 B.-48 C.0 D.XYZ
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1.如果|x-1|+|y+2|+|Z-3|=0,则(x+1)(y-2)(Z+3)的值是( ).A.48 B.-48 C.0 D.XYZ
1.如果|x-1|+|y+2|+|Z-3|=0,则(x+1)(y-2)(Z+3)的值是( ).A.48 B.-48 C.0 D.XYZ
1.如果|x-1|+|y+2|+|Z-3|=0,则(x+1)(y-2)(Z+3)的值是( ).A.48 B.-48 C.0 D.XYZ
几个非负数相加之和为零,必有x-1=0,y+2=0,z-3=0
x=1,y=-2,z=3
-48
x-1|+|y+2|+|z-3|=0
x-1=0
y+2=0
z-3=0
x=1
y=-2
z=3
(x+1)(y-2)(z+3)
=2*(-4)*6
=-48
B
-48
∵|x-1|+|y+2|+|Z-3|=0
∴x=1 y=-2 z=3
∴(x+1)(y-2)(Z+3)
=2×(-4)×6
=-48
选 B