6A square + a = 1 / 5 how much is a equal to

6A square + a = 1 / 5 how much is a equal to

6A square + a = 1 / 5
30A square + 5a-1 = 0
A = (- 5 + 3 √ 15) / 60 or (- 5-3 √ 15) / 60