## Intermediate Algebra (6th Edition)

$-15x^{2}+6$
$-7(2x^{2}-1)-x^{2}-1$ Distribute the $-7$: $-7(2x^{2})-7(-1)-x^{2}-1$ $-14x^{2}+7-x^{2}-1$ Combine like terms: $-15x^{2}+6$