During a game of golf, kate hits her ball ok ut of a sand trap. the height of the golf ball is modeled by the equation h= -16t² + 20t - 4, where h is the height in feet and t is the time in seconds since the ball was hit. find how long it takes kate's golf ball to hit the ground?

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.

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