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Simplifying
(x + -11)(x + 11) = 0
Reorder the terms:
(-11 + x)(x + 11) = 0
Reorder the terms:
(-11 + x)(11 + x) = 0
Multiply (-11 + x) * (11 + x)
(-11(11 + x) + x(11 + x)) = 0
((11 * -11 + x * -11) + x(11 + x)) = 0
((-121 + -11x) + x(11 + x)) = 0
(-121 + -11x + (11 * x + x * x)) = 0
(-121 + -11x + (11x + x2)) = 0
Combine like terms: -11x + 11x = 0
(-121 + 0 + x2) = 0
(-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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