Solve for x
x\in (-\infty,-8]\cup [8,\infty)
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x^{2}\geq 64
Add 64 to both sides.
x^{2}\geq 8^{2}
Calculate the square root of 64 and get 8. Rewrite 64 as 8^{2}.
|x|\geq 8
Inequality holds for |x|\geq 8.
x\leq -8\text{; }x\geq 8
Rewrite |x|\geq 8 as x\leq -8\text{; }x\geq 8.
Examples
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Matrix
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Simultaneous equation
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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