Question 982948
{{{x^2-25<=0}}}


{{{(x-5)(x+5)<=0}}}


You can try examining around the critical values, or you can use simple knowledge of roots of a quadratic equation, how that relates to a parabola.


Critical x values at -5 and 5.
Where the quadratic less than or equal 0?  BETWEEN them, INCLUSIVE.
If you have trouble with this, say so; otherwise,...


SOLUTION:  {{{highlight(-5<=x<=5)}}}



(Choice F is near, but not sufficient).