The answer to this question is both 4 and -7/2 factor and then set both parenthesise equal to zero and solve
Can You Help Me Solve This. 2x(squared)- X- 28=0?
2x^2 - x - 28 < 0
(2x +7) (x-4) = 0
x = -7/2 or x = 4
but this is an inequality so
check in the function
you get
-7/2
(2x +7) (x-4) = 0
x = -7/2 or x = 4
but this is an inequality so
check in the function
you get
-7/2