Question

Evaluate the following expression using the values given:

Find -a2 - 3b3 + c2 + 2b3 - c2 if a = 3, b = 2, and c = -3.

a.-67
b.-17
c.-31
d.1

PLEASE HELP!!!

Answer 1

Will give medal

Answer 2

Here you go

Let's simplify step-by-step.
−a2−3b3+c2+2b3−c2
=−a2+−3b3+c2+2b3+−c2
Combine Like Terms:
=−a2+−3b3+c2+2b3+−c2
=(−3b3+2b3)+(−a2)+(c2+−c2)
=−b3+−a2
Answer:
=−b3−a2

Answer 3

they dont have that as a choice

Answer 4

You have to plug in the numbers

Answer 5

I think it is A but I am not sure

Answer 6

ok thanks

Answer 7

you were wrong