What is this trinomial in factored form? 3a^2-2a-1

Simplifying 3a2 + - 2a + - 1 = 0 Reorder the terms: - 1 + - 2a + 3a2 = 0 Solving - 1 + - 2a + 3a2 = 0 Solving for variable 'a'. Factor a trinomial. (-1 + - 3a) (1 + - 1a) = 0 Subproblem 1Set the factor ' (-1 + - 3a) ' equal to zero and attempt to solve: Simplifying - 1 + - 3a = 0 Solving - 1 + - 3a = 0 Move all terms containing a to the left, all other terms to the right. Add '1' to each side of the equation. - 1 + 1 + - 3a = 0 + 1 Combine like terms: - 1 + 1 = 0 0 + - 3a = 0 + 1 - 3a = 0 + 1 Combine like terms: 0 + 1 = 1 - 3a = 1 Divide each side by '-3'. a = - 0.3333333333 Simplifying a = - 0.3333333333 Subproblem 2Set the factor ' (1 + - 1a) ' equal to zero and attempt to solve: Simplifying 1 + - 1a = 0 Solving 1 + - 1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + - 1 + - 1a = 0 + - 1 Combine like terms: 1 + - 1 = 0 0 + - 1a = 0 + - 1 - 1a = 0 + - 1 Combine like terms: 0 + - 1 = - 1 - 1a = - 1 Divide each side by '-1'. a = 1 Simplifying a = 1Solutiona = {-0.3333333333, 1}