-16(t^2-12-6.25)=0

Solution for -16(t^2-12-6.25)=0 equation:

Simplifying
-16(t2 + -12 + -6.25) = 0

Reorder the terms:
-16(-12 + -6.25 + t2) = 0

Combine like terms: -12 + -6.25 = -18.25
-16(-18.25 + t2) = 0
(-18.25 * -16 + t2 * -16) = 0
(292 + -16t2) = 0

Solving
292 + -16t2 = 0

Solving for variable 't'.

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

Add '-292' to each side of the equation.
292 + -292 + -16t2 = 0 + -292

Combine like terms: 292 + -292 = 0
0 + -16t2 = 0 + -292
-16t2 = 0 + -292

Combine like terms: 0 + -292 = -292
-16t2 = -292

Divide each side by '-16'.
t2 = 18.25

Simplifying
t2 = 18.25

Take the square root of each side:
t = {-4.272001873, 4.272001873}