.3x^2-3=0

Solution for .3x^2-3=0 equation:

Simplifying
0.3x2 + -3 = 0

Reorder the terms:
-3 + 0.3x2 = 0

Solving
-3 + 0.3x2 = 0

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + 0.3x2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 0.3x2 = 0 + 3
0.3x2 = 0 + 3

Combine like terms: 0 + 3 = 3
0.3x2 = 3

Divide each side by '0.3'.
x2 = 10

Simplifying
x2 = 10

Take the square root of each side:
x = {-3.16227766, 3.16227766}