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Simplifying
2x2 + -5 = 11
Reorder the terms:
-5 + 2x2 = 11
Solving
-5 + 2x2 = 11
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '5' to each side of the equation.
-5 + 5 + 2x2 = 11 + 5
Combine like terms: -5 + 5 = 0
0 + 2x2 = 11 + 5
2x2 = 11 + 5
Combine like terms: 11 + 5 = 16
2x2 = 16
Divide each side by '2'.
x2 = 8
Simplifying
x2 = 8
Take the square root of each side:
x = {-2.828427125, 2.828427125}
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