(9t-5)(9t+5)=

Solution for (9t-5)(9t+5)= equation:

Simplifying
(9t + -5)(9t + 5) = 0

Reorder the terms:
(-5 + 9t)(9t + 5) = 0

Reorder the terms:
(-5 + 9t)(5 + 9t) = 0

Multiply (-5 + 9t) * (5 + 9t)
(-5(5 + 9t) + 9t * (5 + 9t)) = 0
((5 * -5 + 9t * -5) + 9t * (5 + 9t)) = 0
((-25 + -45t) + 9t * (5 + 9t)) = 0
(-25 + -45t + (5 * 9t + 9t * 9t)) = 0
(-25 + -45t + (45t + 81t2)) = 0

Combine like terms: -45t + 45t = 0
(-25 + 0 + 81t2) = 0
(-25 + 81t2) = 0

Solving
-25 + 81t2 = 0

Solving for variable 't'.

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

Add '25' to each side of the equation.
-25 + 25 + 81t2 = 0 + 25

Combine like terms: -25 + 25 = 0
0 + 81t2 = 0 + 25
81t2 = 0 + 25

Combine like terms: 0 + 25 = 25
81t2 = 25

Divide each side by '81'.
t2 = 0.3086419753

Simplifying
t2 = 0.3086419753

Take the square root of each side:
t = {-0.555555556, 0.555555556}