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Simplifying
0 = x2 + -121
Reorder the terms:
0 = -121 + x2
Solving
0 = -121 + 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.
0 + -1x2 = -121 + x2 + -1x2
Remove the zero:
-1x2 = -121 + x2 + -1x2
Combine like terms: x2 + -1x2 = 0
-1x2 = -121 + 0
-1x2 = -121
Divide each side by '-1'.
x2 = 121
Simplifying
x2 = 121
Take the square root of each side:
x = {-11, 11}
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