2x^2+16-66=

Solution for 2x^2+16-66= equation:

Simplifying
2x2 + 16 + -66 = 0

Reorder the terms:
16 + -66 + 2x2 = 0

Combine like terms: 16 + -66 = -50
-50 + 2x2 = 0

Solving
-50 + 2x2 = 0

Solving for variable 'x'.

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

Add '50' to each side of the equation.
-50 + 50 + 2x2 = 0 + 50

Combine like terms: -50 + 50 = 0
0 + 2x2 = 0 + 50
2x2 = 0 + 50

Combine like terms: 0 + 50 = 50
2x2 = 50

Divide each side by '2'.
x2 = 25

Simplifying
x2 = 25

Take the square root of each side:
x = {-5, 5}