Question

Evaluate the expression for the given value of the variable |-4b-8|+|-1-b^3|+2b^3;b=-2

Answer 1

Answer:

The value of the expression for b=-2 is -9.

Step-by-step explanation:

Consider the provided expression.

$|-4b-8|+|-1-b^3|+2b^3$

We need to solve the expression for b=-2

Substitute the value of b in the provided expression.

$|-4(-2)-8|+|-1-(-2)^3|+2(-2)^3$

$|8-8|+|-1-(-8)|+2(-8)$

$|0|+|-1+8|-16$

$|0|+|7|-16$

$7-16$

$-9$

Hence, the value of the expression for b=-2 is -9.

Answer 2

[-4(-2)-8]+[-1-(-2)^3]+2(-2)^3

(8-8)+(-1+8)-64

7-64

57