What are the solutions of the equation 6x^2+x-1=0?

In the figure shown below, m < 40 and ab =8. which equation could be used to find x?

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.

Could someone with number 1 and 2