Question 923836
Enter your answer using inequalities
re TY
Zero is considered neither positive or negative
 f(x) = (x-7)(x+4).
a) (x-7)(x+4) > 0 (Both factors >0),   x >   7
0r  (x-7)(x+4) > 0 (Both factors < 0)  x < -4
..............
b) (x-7)(x+4)<  0   
-4 < x < 7
{{{drawing(300,300,   -10,10,-30,10,    
 grid(1),
circle(7, 0,0.4),
circle(-4,0,0.4),
graph( 300, 300, -10,10,-30,10,0, (x-7)(x+4)))}}}