You accidentally drop your iPhone off a bridge 400 feet abov

You accidentally drop your iPhone off a bridge 400 feet above the water. The height, in feet, is modeled by the polynomial 400 - 16t². Factor this polynomial and describe something about your falling iPhone that is easier to see in the factored form rather than the form 400 - 16t².

Solution

H(t) = 400-16t2

=( 20-4t) (20+4t)