Polynomial word equation help what an I doing wrong?

ry another similar question hen you are done, click here to see a summary of your score Question with last attempt is displayed for your review only A small toy rocket is launched from a 20-foot pad. The height (h, in feet) of the rocket t seconds after taking off is given by the formula h - - 2x" + 6x + 20. How long will it take the rocket to hit the ground? 0,3 " (Separate answers by a comma. Write answers as integers or reduced fractions.) Message instructor about this question CHAT A COACH ace. Oil % A & 5 6 7 8 9 0 backs u g h k b n m