Question

Simplify the sum. (7u^3 + 8u^2 + 7) + (8u^3 – 3u + 7)

Answer 1

15u^3 +8u^2 - 3u + 14

Answer 2

15u^3 + 8u^2 - 6u + 13

Explanation:

(7u^3 + 8u^2 + 8) + (8u^3 - 6u + 5)

= 7u^3 + 8u^2 + 8 + 8u^3 - 6u + 5

= 7u^3 + 8u^3 + 8u^2 - 6u + 5 + 8

*Now add the like terms

= 15u^3 + 8u^2 - 6u + 13

And that is all your can do!