Question

Simplify the sum.

(2u^3 + 6u^2 + 3) + (2u^3 – 7u + 6)

Can someone please show me the steps.

Answer 1

get rid of the parenthesiss and combine like terms:
2u^3 + 2u^3
3 + 6
are the only like terms you need to combine. now write out the whole sum including the ones that didn't have other like terms.

Answer 2

do I add the "to the power" numbers as well, or does that remain a 3?

Answer 3

no.... that's what makes them "like" terms. so DO NOT add the exponents.

Answer 4

what's the answer you got?

Answer 5

thank you. ... I got ...4u^3 + 6u^2 – 7u + 9 is that right?

Answer 6

good work!!! :)

Answer 7

Awesome! Thank you so much for your help. You explained it very well! :)

Answer 8

and thank you for working out the problem with me. :)

Answer 9

:)