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 

Solution:

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

Sum of the polynomials = (6x³ - 8x - 5) + (3x³ + 6x + 2)

Removing the brackets,

sum = 6x³ - 8x - 5+ 3x³ + 6x + 2

By grouping the like terms,

Sum = 6x³ + 3x³ - 8x + 6x - 5 + 2

= 9x³ - 2x - 3

Therefore, the sum of the polynomials is 9x³ - 2x - 3.

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

Summary:

The correct sum of the polynomials (6x³ - 8x - 5) + (3x³ + 6x + 2) is 9x³ - 2x - 3.