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Simplifying
x2 + 2 = 72
Reorder the terms:
2 + x2 = 72
Solving
2 + x2 = 72
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-2' to each side of the equation.
2 + -2 + x2 = 72 + -2
Combine like terms: 2 + -2 = 0
0 + x2 = 72 + -2
x2 = 72 + -2
Combine like terms: 72 + -2 = 70
x2 = 70
Simplifying
x2 = 70
Take the square root of each side:
x = {-8.366600265, 8.366600265}
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