80p^2-405=0

Solution for 80p^2-405=0 equation:

Simplifying
80p2 + -405 = 0

Reorder the terms:
-405 + 80p2 = 0

Solving
-405 + 80p2 = 0

Solving for variable 'p'.

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

Add '405' to each side of the equation.
-405 + 405 + 80p2 = 0 + 405

Combine like terms: -405 + 405 = 0
0 + 80p2 = 0 + 405
80p2 = 0 + 405

Combine like terms: 0 + 405 = 405
80p2 = 405

Divide each side by '80'.
p2 = 5.0625

Simplifying
p2 = 5.0625

Take the square root of each side:
p = {-2.25, 2.25}