Question

(x+16)(x-12)(x+2)>0

Answer 1

2x(8-6+1)>0

Answer 2

(x>0)2(8-6+1)

Answer 3

Make a sign graph of the factors. Do you need me to demonstrate?

Answer 4

I believe the answer would be all real numbers because if any negative numbers are used they would be less than 0, not greater than.