Question

Find the sum of 5x7 – 5x3 and 16x3 + 8.

Answer 1

5x⁷+11x³ +8.

Step-by-step explanation:

The sum of the two expressions is given below:

`(5x^7-5x^3)+(16x^3+8)`

First, open the bracket:

`=5x^7-5x^3+16x^3+8`

Combine like terms to simplify:

`=5x^7+11x^3+8`

The sum is 5x⁷+11x³ +8.