Answer:
−7<x<7
Explanation:
Let's find the critical points of the inequality:
x2=49
x=±√49(Take square root)
x=7 or x=−7
Check intervals in between critical points. (Test values in the intervals to see if they work.)
x<−7(Doesn't work in original inequality)
−7<x<7(Works in original inequality)
x>7(Doesn't work in original inequality)
Hope this helped :)