Question 848758
x^2+3x>10
x^2+3x-10> 0
(x+5)(x-2) > 0


testing intervals...

x < -5 
(-)(-)  => (+)  true

-5 < x< 2

(+)(-) => (-) false

x>2

(+)(+)  => (+)  true

solution:

(-oo,-5) U (2,oo)