Simplify the sum. (2u^3 + 6u^2 + 2) + (7u^3 – 7u + 4) Question Simplify the sum. (2u^3 + 6u^2 + 2) + (7u^3 – 7u + 4) in progress 0 Math Everleigh 2 weeks 2021-11-08T15:19:30+00:00 2021-11-08T15:19:30+00:00 1 Answer 0 views 0

## Answers ( )

Answer:When adding polynomials you’ve got to combine all like terms

2u^3 + 7u^3=

9u^3(They both are raised to the third with the same variable.)6u^2(Stays the same because there are no other numbers that are raised to the second)-7u(Again there are no other numbers to combine this with)2+4=

6(Add 2+4 as normal)Now you put together all the numbers that are left for your final answer

9u^3+6u^2-7u+6Hope this helps 😉