0=-16t^2+t+7

Solution for 0=-16t^2+t+7 equation:

0=-16t^2+t+7

We move all terms to the left:

0-(-16t^2+t+7)=0

We add all the numbers together, and all the variables

-(-16t^2+t+7)=0

We get rid of parentheses

16t^2-t-7=0

We add all the numbers together, and all the variables

16t^2-1t-7=0

a = 16; b = -1; c = -7;
Δ = b2-4ac
Δ = -12-4·16·(-7)
Δ = 449
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$t_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$t_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$t_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-1)-\sqrt{449}}{2*16}=\frac{1-\sqrt{449}}{32}
$
$t_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-1)+\sqrt{449}}{2*16}=\frac{1+\sqrt{449}}{32}
$