Short Answer. Add the following polynomials:
(7x2 + 4x – 8) + (8x3 – x2 – 3)

Question

Short Answer. Add the following polynomials: 
(7x2 + 4x – 8) + (8x3 – x2 – 3)

anonymous · Answer

just keep the like terms together. it's an addition problem and you can do it lisa!

to start with : add the ^3 terms... (there's only one in this case)

anonymous · Answer

next, look at only the x^2 terms. there are two. add them together (note any negative signs)

saifoo.khan · Answer

$$8 x^3+6 x^2+4 x-11 $$

anonymous · Answer

let's give lisa a chance to learn how to do it please...

anonymous · Answer

lisa are you still there?

anonymous · Answer

8x^3 + 6x^2 + 4x - 11

anonymous · Answer

I am still here I am just trying to work the problem give me a min.

anonymous · Answer

sure, take your time.

anonymous · Answer

ok I think I got it check my work please.
(7x^2+4x-8)+(8x^3-x^2-3)=
8x^3+(7-1)x^2+4x-8-3=
8x^3+6x^2+4x-11

anonymous · Answer

that looks great. nice work, lisa!

anonymous · Answer

thanks and sorry it took so long I am not that good at math it is hard for me. but i am trying my best.

anonymous · Answer

no need to apologize. i'm glad you took the time to solve it rather than just getting the answer. now hopefully you know how to do this type of problem!

anonymous · Answer

I am getting the hang of it now.