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Simplifying
2x2 + 11 = 47
Reorder the terms:
11 + 2x2 = 47
Solving
11 + 2x2 = 47
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-11' to each side of the equation.
11 + -11 + 2x2 = 47 + -11
Combine like terms: 11 + -11 = 0
0 + 2x2 = 47 + -11
2x2 = 47 + -11
Combine like terms: 47 + -11 = 36
2x2 = 36
Divide each side by '2'.
x2 = 18
Simplifying
x2 = 18
Take the square root of each side:
x = {-4.242640687, 4.242640687}
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