Ihave a test tomorrow and i really need !

Y=4x^2+x-1 solve using quadratic formula

Marcus and cody both leave the park at the same time, but in opposite directions. if cody travels 6 mph faster than marcus and after 4 hours they are 64 miles apart, how fast is each traveling? solve using rare times time = distance.

Pls brainliest will be awarded if answer is correct