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Simplifying
203 + 121 = x2
Combine like terms: 203 + 121 = 324
324 = x2
Solving
324 = 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.
324 + -1x2 = x2 + -1x2
Combine like terms: x2 + -1x2 = 0
324 + -1x2 = 0
Add '-324' to each side of the equation.
324 + -324 + -1x2 = 0 + -324
Combine like terms: 324 + -324 = 0
0 + -1x2 = 0 + -324
-1x2 = 0 + -324
Combine like terms: 0 + -324 = -324
-1x2 = -324
Divide each side by '-1'.
x2 = 324
Simplifying
x2 = 324
Take the square root of each side:
x = {-18, 18}
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