Question

What is the sum of the polynomials?

(–x2 + 9) + (–3x2 – 11x + 4)

–4x2 – 2x + 4

–4x2 – 11x + 13

2x2 + 20x + 4

2x2 + 11x + 5

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Answer 1

`- {x}^(2) + 9 - 3 {x}^(2) - 11x + 4 \\ = - 4 {x}^(2) - 11x + 13`

2nd answer

Answer 2

Option B. -4x² - 11x + 13

Explanation:

Given polynomials are ( -x² + 9 ) and ( -3x² - 11x + 4 )

We have to add them.

( -x² + 9 ) + -3x² - 11x + 4 )

-x² + 9 - 3x² - 11x + 4

Now we will collect similar terms

( -x² - 3x² ) - 11x + ( 9 + 4 )

-4x² - 11x + 13

Therefore, option B is the answer.