Question

What is the sum of the polynomials

( Image added)


A. 10x^2 - 9

B. 11x^2 - x -9

C. 11x^2 + x - 1

D. 12x^2 - 1

Answer 1

C

Explanation:

To add the polynomials you can only add like terms. Like terms are terms that have the same variables and exponents. Only -5 and 4 are like terms. So leave the other terms alone.

The sum is 11x^2 + x - 1.