-49x^2+225=0

Solution for -49x^2+225=0 equation:

Simplifying
-49x2 + 225 = 0

Reorder the terms:
225 + -49x2 = 0

Solving
225 + -49x2 = 0

Solving for variable 'x'.

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

Add '-225' to each side of the equation.
225 + -225 + -49x2 = 0 + -225

Combine like terms: 225 + -225 = 0
0 + -49x2 = 0 + -225
-49x2 = 0 + -225

Combine like terms: 0 + -225 = -225
-49x2 = -225

Divide each side by '-49'.
x2 = 4.591836735

Simplifying
x2 = 4.591836735

Take the square root of each side:
x = {-2.142857143, 2.142857143}