Match each equation with its solution set.
a2 − 9a + 14 = 0
a2 + 9a + 14 = 0
a2 + 3a − 10 = 0
a2 + 5a − 14 = 0
a2 − 5a − 14 = 0
{-2, 7}-->
{2, -7}-->
{-2, -7}-->
{7, 2}-->

The answer sets are  

{-2, 7}--> a2 − 5a − 14 = 0

{2, -7}--> a2 + 5a − 14 = 0

{-2, -7}--> a2 + 9a + 14 = 0

{7, 2}--> a2 − 9a + 14 = 0

step-by-step explanation:

0

sina-sinb

cosb+cosa

tana-tanb

cos0+cos x pi/3

20tan

step-by-step explanation: