## Algebra 1: Common Core (15th Edition)

$-\frac{2a+1}{a+3}$
(Factor -1 from the denominator) $\frac{4a^{2}-8a-5}{-1(2a^{2}+a-15)}$ (Factor the quadratic in the numerator) $\frac{(2a+1)(2a-5)}{-1(2a^{2}+a-15)}$ (Factor the quadratic in the denominator) $\frac{(2a+1)(2a-5)}{-1(2a-5)(a+3)}$ (Divide by the common factor 2a-5) $-\frac{2a+1}{a+3}$