Question

Which polynomial represents the sum below?

(18x2 - 18) + (-13x2 - 13x + 13)

A. 18x2 - 31x - 18
B. 31x2 - 31x - 5
C. 5x2 - 13x - 5
D. 5x2 - 13x - 31

Answer 1

The answer is: C

I hope the answer helped, if you have any questions feel free to ask.

Answer 2

Option C

Explanation:

There are two polynomials given ( 18x² - 18) and 13x² - 13x + 13)

Now we have to add them

(18x² - 18) + (-13x² - 13x + 13)

First we collect the like terms

18x² - 18 - 13x² - 13x + 13

(18x² - 13x²) - 13x + (13 - 18)

5x² - 13x -5

Option C is the answer.