40t^2-9=0

Solution for 40t^2-9=0 equation:

Simplifying
40t2 + -9 = 0

Reorder the terms:
-9 + 40t2 = 0

Solving
-9 + 40t2 = 0

Solving for variable 't'.

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

Add '9' to each side of the equation.
-9 + 9 + 40t2 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + 40t2 = 0 + 9
40t2 = 0 + 9

Combine like terms: 0 + 9 = 9
40t2 = 9

Divide each side by '40'.
t2 = 0.225

Simplifying
t2 = 0.225

Take the square root of each side:
t = {-0.474341649, 0.474341649}