Question

i can't seem to figure this out?

Answer 1

Can't figure what out?

Answer 2

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

Answer 3

Oh, I have no idea how to do that or even what that means, sorry. I hope someone can help you to understand.

Answer 4

oh it's okay, thanks anyways ^.^

Answer 5

Everywhere you see a 'b', replace it with -2 and evaluate


\[\Large |-4b - 8| + |-1 - b^2| + 2b^3\]


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


\[\Large |-4(-2) - 8| + |-1 - 4| + 2(-8)\]


\[\Large |8 - 8| + |-1 - 4| - 16\]


\[\Large |0| + |-5| - 16\]


\[\Large 0 + 5 - 16\]


\[\Large -11\]


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So, \[\Large |-4b - 8| + |-1 - b^2| + 2b^3 = -11\] when b = -2

Answer 6

wow thank you so much.