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Simplifying
x(x) + -121 = 0
Multiply x * x
x2 + -121 = 0
Reorder the terms:
-121 + x2 = 0
Solving
-121 + x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '121' to each side of the equation.
-121 + 121 + x2 = 0 + 121
Combine like terms: -121 + 121 = 0
0 + x2 = 0 + 121
x2 = 0 + 121
Combine like terms: 0 + 121 = 121
x2 = 121
Simplifying
x2 = 121
Take the square root of each side:
x = {-11, 11}
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