2x^2+7=123

Solution for 2x^2+7=123 equation:

Simplifying
2x2 + 7 = 123

Reorder the terms:
7 + 2x2 = 123

Solving
7 + 2x2 = 123

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + 2x2 = 123 + -7

Combine like terms: 7 + -7 = 0
0 + 2x2 = 123 + -7
2x2 = 123 + -7

Combine like terms: 123 + -7 = 116
2x2 = 116

Divide each side by '2'.
x2 = 58

Simplifying
x2 = 58

Take the square root of each side:
x = {-7.615773106, 7.615773106}