Question

(4u^3+4u^2+2) + (6u^3-2u+8)

Answer 1

just add the terms containing the same exponent

4u^3 and 6u^3

there are no other u^2 terms so you just keep that as is.
same with the -2u
add 2 and 8.
see what happens. post what you get. if you have questions just ask.

Answer 2

10^2 + 4u^2 -2u + 10

Answer 3

the first term should be 10u^3

Answer 4

thats how i have it down just put it up here wrong

Answer 5

good.

Answer 6

You may want to try to factor it now... but you didn't post the original question, so I don't know.

Answer 7

\[10u ^{3} + 4u^2 -2u + 10 = 2(5u ^{3}+2u ^{2} - u +5)\]
Doesn't look like it'll factor much more than that.