Question

Choose the correct sum of the polynomials (6x3 − 8x − 5) + (3x3 + 6x + 2). 9x3 − 2x − 3 3x3 + 2x + 3 3x3 − 2x − 3 9x3 + 14x + 3

Answer 1

9x3 - 2x - 3
Simplify 6x3-8x-5 + 3x3+6x+2

Answer 2

Option A. ( 9x³ - 2x - 3 )

Explanation:

Given polynomials are ( 6x³ - 8x - 5 ) and ( 3x³ + 6x + 2)

We have to find the sum of these polynomials

( 6x³ - 8x - 5 ) + ( 3x³ + 6x + 2)

We will collect the similar terms first.

6x³ - 8x - 5 + 3x³ + 6x = 2

= ( 6x³ + 3x³ ) + ( 6x - 8x ) + ( 2 - 5 )

= ( 9x³ - 2x - 3 )

Option A. ( 9x³ - 2x - 3 ) is the correct option.