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Simplifying
(x2 + 9) = 289
Reorder the terms:
(9 + x2) = 289
Remove parenthesis around (9 + x2)
9 + x2 = 289
Solving
9 + x2 = 289
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-9' to each side of the equation.
9 + -9 + x2 = 289 + -9
Combine like terms: 9 + -9 = 0
0 + x2 = 289 + -9
x2 = 289 + -9
Combine like terms: 289 + -9 = 280
x2 = 280
Simplifying
x2 = 280
Take the square root of each side:
x = {-16.733200531, 16.733200531}
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