Which ordered pair is a solution of the inequality? 2y + 6 < 8x

Select the quadratic that has root x = 8 and x = -5

Hi, can anyone show me how to do this problem? 100 points for this. in advance

It is given that the quadratic equation hx²-3x+k=0, where h and k are constants, has roots [tex] \beta \: and \: 2 \beta [/tex]express h in terms of k