Question

I need help solving these 3 equations please! Simplify.
1. |-4b-8|+|-1-b^2|+2b^3 , b=-2
2. -(4h-1)/1+h , h=2
3. 9c-6d+4c-3d

Answer 1

Well, let's begin with the first one:
\[\left| -4b-8 \right|+\left| -1-b^2\right|+2b^3 \]
And since we are given the value of the variable, we can simply plug it in:
\[\left| -4(-2)-8 \right|+\left| -1-(-2)^2\right|+2(-2)^3 \]

Answer 2

Where would I start? This problem is so confusing, i know how to do absolute value inequalities but nothing this complicated.

Answer 3

With the correct operations, you'll obtain:
\[\left| 8-8 \right|+\left| -1-4 \right|-16\]
So, all you have to do is operate further.

Answer 4

I feel really stupid right now trying to figure that out please help. :( So how would I operate further?

Answer 5

Sure:
\[\left| 8-8 \right|+\left| -1-4 \right|-16 = \left| 0 \right|+\left| -5 \right|-16\]
\[\left| 0 \right|+\left| -5 \right|-16=0+5+16\]