Question

Find the sum and Express it in simplest form. (u^3+3u^2+3) + (-6u^3-8u^2)

Answer 1

-5u^3 - 5u^2 + 3.

Explanation:

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

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

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

= -5u^3 - 5u^2 + 3.