Question

I need help evaluating this expression... I don't really understand this type of thing so I would love it if you could help me through the steps. :-)

|-4b-8|+|-1-b^2|+2b^3; b=-2

Answer 1

Hello :)
Fist let's substitute b into the equation and simplify:
|8-8| + |-1 -(-2)^2| +2 (-2)^3

Answer 2

After you did all the annoying little stuff you should get 0+ |-5| +2(-2)^3

Answer 3

The absolute value is the distance between a number and zero. The distance between a number and zero

Answer 4

The distance between -5 and 0 is 5. So 0 + 5- 16

Answer 5

So then it would be -11?

Answer 6

YES!!!!

Answer 7

Yayyy :)

Answer 8

Oh my goodness XD I get how you got it, thank you so much. :-) <3