|-4b - 8| + |-1 - b^2| + 2b^3 ; b= -2
Insert -2 wherever there is a b|-4(-2) - 8| + |-1 - (-2)^2| + 2(-2)^3 -4(-2)= 8, (-2)^2=4, (-2)^3=-8 |8-8| + |-1 - 4| + 2(-8)8-8=0, -1-4=-5, 2(-8)= -16 |0| +|-5| - 16 |0|=0, |-5|=5 0+5-16=-9 -9 is your answer