Answer:
-x^2 + 25 < 0
-25 -25 (getting rid of constants first)
-x^2 < -25
/−1 /-1 (Divide both sides by -1)
x^2 = 25
x=±√25(Take square root)
x = 5 or x = −5
Check intervals in between critical points. (Test values in the intervals to see if they work.)
x<−5(Works in original inequality)
−5<x<5(Doesn't work in original inequality)
x>5(Works in original inequality)
x < -5 or x > 5, answer is C
(use m.athway or ma.th pa.pa it helps)
