Solve and show all steps
|–4b – 8| + |–1 – b²| + 2b³ ; b = –2

|–4b – 8| + |–1 – b²| + 2b³ 
Substitute all of the b variables for -2.
|–4(-2)– 8| + |–1 – (-2)²| + 2(-2)³ 
Multiply the exponents
|–4(-2) – 8| + |–1 – 4| + 2(-8)
Multiply the variable number (-2) by the coefficent
|8 – 8| + |–1 – 4| + (-16)
Subtract 8 from 8
|0| +|-1 - 4| + (-16)
Subtract -4 from -1
|0| |- 5| + (-16) 
Use the absolute value tool on 0 and -5
0 + 5 - 16
Add 5 to 0
5 - 16
Subtract
Final -11

You just divide and you will find x

Ais less than or equal to -5