Can anyone help with this math problem

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2

Two airplanes start at the same place and travel in opposite directions,one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?

5. write an equation for the line that is parallel to the given line and that passes through the given point. y = –5x + 3; (–6, 3)