Can you solve this using factoring please?

Question

An object is dropped from 34 feet below the tip of the pinnacle atop a 1190 feet tall building. The height h of the object after t seconds is given by the equation h=-16t^2=1156. Find how many seconds pass before the object reaches the ground.

Answer 1

h=1156-16t^2 ?

if so then at t=0, then h= 1156, which makes sense

so what is t when h=0?

0=1156-16t^2

1156=16t^2

72.25=t^2

8.5=t