x4 -3x + 1, 4x2 - 2x + 8, and x3 - 9

Question

anonymous · Answer

what's the question? you're just giving numbers here

anonymous · Answer

Add the following polynomials, then place the answer in the proper location on the grid. Write your answer in descending powers of x.

anonymous · Answer

forget about the "answer in the proper location on the grid" part

texaschic101 · Answer

do you know what like terms are ?

anonymous · Answer

i just want the answer

anonymous · Answer

Basically take the numbers with the same amount of x's and add them but pay attention to the signs

anonymous · Answer

Like x^4 cant be added to x^3, but -3x and -2x can be

texaschic101 · Answer

x^4 + 0x^3 + 0x^2 -3x    + 1
0x^4 + 0x^3 + 4x^2  - 2x + 8
0x^4 + 1 x^3 + 0x^2 -0x  - 9
----------------------------add
x^4 + x^3 + 4x^2 - 5x

anonymous · Answer

@texaschic101 is right, and then you factor out the x

anonymous · Answer

final answer would be x(x^3+x^2-4x-5)
check my work?

texaschic101 · Answer

like terms : 3x + 2x - x
unlike terms : x^2 + 4x

you cannot add/subtract unlike terms

texaschic101 · Answer

what sloth said....with the factoring out the x...that is correct, but your teacher might not want it factored. Make sure before you turn it in

anonymous · Answer

thank you both

texaschic101 · Answer

sure thing :)

anonymous · Answer

no problem