Question

Which polynomial represents the sum: `(8x^2+5x+3)+(-5x^6=2x^5-4x^2-2x)`?

Answer 1

I take it the `=` in the second parts was meant as a `+` (forgot the shift-button?)

Explanation:

First we lose the brackets (no sign change because of the `+` between them), then we order by power:

`=-5x^6+2x^5+8x^2-4x^2+5x-2x+3`

We may add like powers:

`=-5x^6+2x^5+(8-4)x^2+(5-2)x+3`

`=-5x^6+2x^5+4x^2+3x+3`