(9t-8)(9t+8)=

Solution for (9t-8)(9t+8)= equation:

Simplifying
(9t + -8)(9t + 8) = 0

Reorder the terms:
(-8 + 9t)(9t + 8) = 0

Reorder the terms:
(-8 + 9t)(8 + 9t) = 0

Multiply (-8 + 9t) * (8 + 9t)
(-8(8 + 9t) + 9t * (8 + 9t)) = 0
((8 * -8 + 9t * -8) + 9t * (8 + 9t)) = 0
((-64 + -72t) + 9t * (8 + 9t)) = 0
(-64 + -72t + (8 * 9t + 9t * 9t)) = 0
(-64 + -72t + (72t + 81t2)) = 0

Combine like terms: -72t + 72t = 0
(-64 + 0 + 81t2) = 0
(-64 + 81t2) = 0

Solving
-64 + 81t2 = 0

Solving for variable 't'.

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

Add '64' to each side of the equation.
-64 + 64 + 81t2 = 0 + 64

Combine like terms: -64 + 64 = 0
0 + 81t2 = 0 + 64
81t2 = 0 + 64

Combine like terms: 0 + 64 = 64
81t2 = 64

Divide each side by '81'.
t2 = 0.7901234568

Simplifying
t2 = 0.7901234568

Take the square root of each side:
t = {-0.888888889, 0.888888889}