Question

Choose the correct simpilfication of (7x^3-8x-5)+(3x^3+7x+1)

Answer 1

`10x^(3) -x-4`

Explanation:

`(7x^3-8x-5)+(3x^3+7x+1)`

`7x^3+-8x+-5+3x^3+7x+1`

`(7x^(3) +3x^(3) )+(-8x+7x)+(-5+1)`

`10x^(3) -x+-4`

Answer 2

Explanation:

(7x³-8x-5)+(3x³+7x+1) =7x³ - 8x - 5 + 3x³ + 7x + 1

Combine the like terms

= 7x³ + 3x³ - 8x + 7x - 5 + 1

Now, add/ subtract the like terms

= 10x³ - x - 4