3x^2-1200=0

Solution for 3x^2-1200=0 equation:

Simplifying
3x2 + -1200 = 0

Reorder the terms:
-1200 + 3x2 = 0

Solving
-1200 + 3x2 = 0

Solving for variable 'x'.

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

Add '1200' to each side of the equation.
-1200 + 1200 + 3x2 = 0 + 1200

Combine like terms: -1200 + 1200 = 0
0 + 3x2 = 0 + 1200
3x2 = 0 + 1200

Combine like terms: 0 + 1200 = 1200
3x2 = 1200

Divide each side by '3'.
x2 = 400

Simplifying
x2 = 400

Take the square root of each side:
x = {-20, 20}