2x^2+4+15=240

Solution for 2x^2+4+15=240 equation:

Simplifying
2x2 + 4 + 15 = 240

Reorder the terms:
4 + 15 + 2x2 = 240

Combine like terms: 4 + 15 = 19
19 + 2x2 = 240

Solving
19 + 2x2 = 240

Solving for variable 'x'.

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

Add '-19' to each side of the equation.
19 + -19 + 2x2 = 240 + -19

Combine like terms: 19 + -19 = 0
0 + 2x2 = 240 + -19
2x2 = 240 + -19

Combine like terms: 240 + -19 = 221
2x2 = 221

Divide each side by '2'.
x2 = 110.5

Simplifying
x2 = 110.5

Take the square root of each side:
x = {-10.511898021, 10.511898021}