Question

Add. write the answers in descending order of the variable (7x^3 + x + 3)+(x^3 - 2x + 3)

Answer 1

`8x^(3) - x+6`

Explanation:

The associative property says you can add in any order, so group the like terms.

`7x^(3)+x^(3) +x-2x+3+3\\8x^(3)-x+6`

Answer 2

8x^3 - x +6

Explanation:

It is the same addition you learnt from 3rd grade

Add all the like terms