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Simplifying
x2 + -1x = 121 + -1x
Reorder the terms:
-1x + x2 = 121 + -1x
Add 'x' to each side of the equation.
-1x + x + x2 = 121 + -1x + x
Combine like terms: -1x + x = 0
0 + x2 = 121 + -1x + x
x2 = 121 + -1x + x
Combine like terms: -1x + x = 0
x2 = 121 + 0
x2 = 121
Solving
x2 = 121
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Simplifying
x2 = 121
Take the square root of each side:
x = {-11, 11}
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