Question

What is the sum of the polynomials?

(6x+7+x²) + (2x²-3)
-x²+6x+4
3x²+6x+4
9x + 4
9x² +4

Answer 1

3x^2 + 6x + 4

Explanation:

6x + 7 + x^2 + 2x^2 - 3 = 3x^2 + 6x + 4

Answer 2

3x²+6x+4

Explanation:

Given:

(6x+7+x²) + (2x²-3)

Aim:

To add the polynomials

Solution:

Removing brackets first:

• 6x+7+x²+2x² - 3

Collecting like terms to each other,

• 6x+7-3+2x²+x²

Simplifying,

• 6x+4+3x²

Rewriting it as,

• 3x²+6x+4

Second choice is accurate.