Question 6626
1) x(2+x) > 15    <---- Multiply both sides by x.
2) 2x + x^2 > 15
3) x^2 + 2x - 15 > 0  <---- Subtract 15 from both sides.
4) (x+5)(x-3) > 0     <---- Reverse FOILING.
5) x > -5, 3

Hope that helps.
Regards,
-Mike