245a^2-405=0

Solution for 245a^2-405=0 equation:

Simplifying
245a2 + -405 = 0

Reorder the terms:
-405 + 245a2 = 0

Solving
-405 + 245a2 = 0

Solving for variable 'a'.

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

Add '405' to each side of the equation.
-405 + 405 + 245a2 = 0 + 405

Combine like terms: -405 + 405 = 0
0 + 245a2 = 0 + 405
245a2 = 0 + 405

Combine like terms: 0 + 405 = 405
245a2 = 405

Divide each side by '245'.
a2 = 1.653061224

Simplifying
a2 = 1.653061224

Take the square root of each side:
a = {-1.285714286, 1.285714286}