-x^2+0.3=0

Solution for -x^2+0.3=0 equation:

Simplifying
-1x2 + 0.3 = 0

Reorder the terms:
0.3 + -1x2 = 0

Solving
0.3 + -1x2 = 0

Solving for variable 'x'.

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

Add '-0.3' to each side of the equation.
0.3 + -0.3 + -1x2 = 0 + -0.3

Combine like terms: 0.3 + -0.3 = 0.0
0.0 + -1x2 = 0 + -0.3
-1x2 = 0 + -0.3

Combine like terms: 0 + -0.3 = -0.3
-1x2 = -0.3

Divide each side by '-1'.
x2 = 0.3

Simplifying
x2 = 0.3

Take the square root of each side:
x = {-0.547722558, 0.547722558}