SOLUTION: how.. -16t^2-28t+250=0

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Question 810374: how..
-16t^2-28t+250=0
Answer by erica65404(394) About Me  (Show Source):
You can put this solution on YOUR website!
use the quadratic equation
a=-16
b=-28
c=250
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+

x+=+%2828+%2B-+sqrt%28+784%2B16000%29%29%2F%28-32%29
x+=+%2828+%2B-+4sqrt%28+1049%29%29%2F%28-32%29
x+=+%287+%2B-+sqrt%28+1049%29%29%2F%28-8%29