0=-16t^2+72

Solution for 0=-16t^2+72 equation:

Simplifying
0 = -16t2 + 72

Reorder the terms:
0 = 72 + -16t2

Solving
0 = 72 + -16t2

Solving for variable 't'.

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

Add '16t2' to each side of the equation.
0 + 16t2 = 72 + -16t2 + 16t2
Remove the zero:
16t2 = 72 + -16t2 + 16t2

Combine like terms: -16t2 + 16t2 = 0
16t2 = 72 + 0
16t2 = 72

Divide each side by '16'.
t2 = 4.5

Simplifying
t2 = 4.5

Take the square root of each side:
t = {-2.121320344, 2.121320344}