Question

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

Answer 1

Answer:

8x^3 - x +6

Step-by-step explanation:

It is the same addition you learnt from 3rd grade

Add all the like terms

Answer 2

Answer:

$8x^{3} - x+6$

Step-by-step explanation:

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

$7x^{3}+x^{3} +x-2x+3+3\\8x^{3}-x+6$