## College Algebra (6th Edition)

$t=\frac{-v_0±\sqrt {v_0^2-64s}}{32}$
Simply apply the given quadratic equation to the quadratic formula. $16t^2-v_0t+s=0$ $a=16, b=v_0, c=s$ $t=\frac{-v_0±\sqrt {v_0^2-4*16*s}}{2*16}$ $t=\frac{-v_0±\sqrt {v_0^2-64s}}{32}$