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Simplifying
225 = 12 + x2
Solving
225 = 12 + x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-1x2' to each side of the equation.
225 + -1x2 = 12 + x2 + -1x2
Combine like terms: x2 + -1x2 = 0
225 + -1x2 = 12 + 0
225 + -1x2 = 12
Add '-225' to each side of the equation.
225 + -225 + -1x2 = 12 + -225
Combine like terms: 225 + -225 = 0
0 + -1x2 = 12 + -225
-1x2 = 12 + -225
Combine like terms: 12 + -225 = -213
-1x2 = -213
Divide each side by '-1'.
x2 = 213
Simplifying
x2 = 213
Take the square root of each side:
x = {-14.594519519, 14.594519519}
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