Solve for k
k\in \left(-\infty,-7\right)\cup \left(7,\infty\right)
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k^{2}>49
Add 49 to both sides.
k^{2}>7^{2}
Calculate the square root of 49 and get 7. Rewrite 49 as 7^{2}.
|k|>7
Inequality holds for |k|>7.
k<-7\text{; }k>7
Rewrite |k|>7 as k<-7\text{; }k>7.
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