0=-16t^2+900

Solution for 0=-16t^2+900 equation:

Simplifying
0 = -16t2 + 900

Reorder the terms:
0 = 900 + -16t2

Solving
0 = 900 + -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 = 900 + -16t2 + 16t2
Remove the zero:
16t2 = 900 + -16t2 + 16t2

Combine like terms: -16t2 + 16t2 = 0
16t2 = 900 + 0
16t2 = 900

Divide each side by '16'.
t2 = 56.25

Simplifying
t2 = 56.25

Take the square root of each side:
t = {-7.5, 7.5}