3x^2-13=10

Solution for 3x^2-13=10 equation:

Simplifying
3x2 + -13 = 10

Reorder the terms:
-13 + 3x2 = 10

Solving
-13 + 3x2 = 10

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 = 10 + 13

Combine like terms: -13 + 13 = 0
0 + 3x2 = 10 + 13
3x2 = 10 + 13

Combine like terms: 10 + 13 = 23
3x2 = 23

Divide each side by '3'.
x2 = 7.666666667

Simplifying
x2 = 7.666666667

Take the square root of each side:
x = {-2.768874621, 2.768874621}