3x^2-13=30

Solution for 3x^2-13=30 equation:

Simplifying
3x2 + -13 = 30

Reorder the terms:
-13 + 3x2 = 30

Solving
-13 + 3x2 = 30

Solving for variable 'x'.

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

Add '13' to each side of the equation.
-13 + 13 + 3x2 = 30 + 13

Combine like terms: -13 + 13 = 0
0 + 3x2 = 30 + 13
3x2 = 30 + 13

Combine like terms: 30 + 13 = 43
3x2 = 43

Divide each side by '3'.
x2 = 14.33333333

Simplifying
x2 = 14.33333333

Take the square root of each side:
x = {-3.785938897, 3.785938897}