What is the easiest to use to solve x2-6=0?

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

Two friends are reading books. jimmy reads a book with 21,356 words. his friend bob reads a book with one-and-a-half times as many words. which expression represents the number of words bob reads?

Tom travels between the two mile markers shown and then finds his average speed in miles per hour. select the three equations that represent this situation.