Question

Fan and medal?
Help me out!

Evaluate the following expression using the values given:

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

-67

-17

-31

1

Answer 1

Substitute the values of a, b, and c into the expression and simplify it.

Answer 2

I dont understand how to do it

Answer 3

First, could you enlighten me? Is the first one \(-a^2\) or \((-a)^2\)? And last one too?

Answer 4

Let me screen shot it for you.

Answer 5

That's a great idea.

Answer 6

Got it. The first thing I realized is that you can simplify them, e.g. \(-3b^3\) and \(2b^3\)

Answer 7

Now we got \(-a^2-b^3\), much easier. Then substitute a and b into it. \(-3^2-2^3=-17\).

Answer 8

so what would the answer be?

Answer 9

-17

Answer 10

Thankssssssss

Answer 11

I'm trying to fan you my computer is being dumb

Answer 12

It's my pleasure.