Question

Add 4x4 + 7x3 + 15x2 + 4 and 4x3 + 2x2 + 17x. A) 4x4 + 4x3 + 2x2 + 17x + 4 B) 4x4 + 7x3 + 17x2 + 17x C) x4 + x3 + 17x2 + 17x + 4 D) 4x4 + 11x3 + 17x2 + 17x + 4

Answer 1

(4x^4+7x^3+15x^2+4)+(4x^3+2x^2+17x)

Explanation:

Answer 2

`(4x^4+7x^3+15x^2+4)+(4x^3+2x^2+17x)`

We see that
`7x^3` and
`4x^3` has the same x variable, so we can add them to get
`11x^(3)`.

Also, we can do the same to
`15x^2` and
`2x^2` to get
`17x^2`.

Therefore, our answer is D)
`4x^4+11x^3+17x^2+17x+4`