R = -1
(-1^(3)) + |-1| = 0
-1+1 = 0
or R = 0
(0^(3)) + |0| = 0
0+0 = 0
Is there a way to approach this without plugging in the variables? I cant just pull them out the air when im taking the GMAT
all right. figured it out.
absolute values can be positive or zero.
therefore, R from |R| is 0 or any positive number.
If R is 0, then Rcubed is zero. This is possible only when 0 is the base.
If R is positive 1, then Rcubed must be -1 to balance the equation. R from Rcubed must be -1.
If R is positive 2, the equation cannot balance.....
Therefore, R= 0 or -1.