| x | + x^3 =0 solve x ?  Choices.
A) 0
B) 1
C) 2
D) 3
E) 4
let x=-1   |X|=1   x^3=(-1)^3=-1   |x|+x^3=1-1= 
<gadget id="calculator">1-1</gadget>
<output>0</output>
0   so X=-1   and also x= 0 because here didn't mention any condition   0NSWER:0
<result>A</result>
| x | + x^3 =0 solve x ?