14t^2+15t-9=0

Solution for 14t^2+15t-9=0 equation:

Simplifying
14t2 + 15t + -9 = 0

Reorder the terms:
-9 + 15t + 14t2 = 0

Solving
-9 + 15t + 14t2 = 0

Solving for variable 't'.

Factor a trinomial.
(-3 + -2t)(3 + -7t) = 0

Subproblem 1
Set the factor '(-3 + -2t)' equal to zero and attempt to solve:

Simplifying
-3 + -2t = 0

Solving
-3 + -2t = 0

Move all terms containing t to the left, all other terms to the right.

Add '3' to each side of the equation.
-3 + 3 + -2t = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -2t = 0 + 3
-2t = 0 + 3

Combine like terms: 0 + 3 = 3
-2t = 3

Divide each side by '-2'.
t = -1.5

Simplifying
t = -1.5
Subproblem 2
Set the factor '(3 + -7t)' equal to zero and attempt to solve:

Simplifying
3 + -7t = 0

Solving
3 + -7t = 0

Move all terms containing t to the left, all other terms to the right.

Add '-3' to each side of the equation.
3 + -3 + -7t = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -7t = 0 + -3
-7t = 0 + -3

Combine like terms: 0 + -3 = -3
-7t = -3

Divide each side by '-7'.
t = 0.4285714286

Simplifying
t = 0.4285714286
Solution
t = {-1.5, 0.4285714286}