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Simplifying
2x2 + 8 = 45
Reorder the terms:
8 + 2x2 = 45
Solving
8 + 2x2 = 45
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-8' to each side of the equation.
8 + -8 + 2x2 = 45 + -8
Combine like terms: 8 + -8 = 0
0 + 2x2 = 45 + -8
2x2 = 45 + -8
Combine like terms: 45 + -8 = 37
2x2 = 37
Divide each side by '2'.
x2 = 18.5
Simplifying
x2 = 18.5
Take the square root of each side:
x = {-4.301162634, 4.301162634}
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