Simplify Find the sum of 2x^2-8x-6 and 9x^2-8

Find the sum of $2 x^{2} - 8 x - 6$ and $9 x^{2} - 8$

Write the problem as a mathematical expression.

$2 x^{2} - 8 x - 6 + 9 x^{2} - 8$

Add $2 x^{2}$ and $9 x^{2}$ .

$11 x^{2} - 8 x - 6 - 8$

Subtract $8$ from $- 6$ .

$11 x^{2} - 8 x - 14$