Question

The sum of 3x^2+x+8 and x^2-9 can be expressed as:

Answer 1

Answer:

$4x^2+x-1$

Explanation:

Given the polynomials:

$3x^2+x+8\; and\; x^2-9$

Their sum will be:

$\begin{gathered} (3x^2+x+8)+(x^2-9) \\ =3x^2+x^2+x+8-9 \\ =4x^2+x-1 \end{gathered}$