0=-16t^2+1040

Solution for 0=-16t^2+1040 equation:

0=-16t^2+1040

We move all terms to the left:

0-(-16t^2+1040)=0

We add all the numbers together, and all the variables

-(-16t^2+1040)=0

We get rid of parentheses

16t^2-1040=0

a = 16; b = 0; c = -1040;
Δ = b2-4ac
Δ = 02-4·16·(-1040)
Δ = 66560
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$t_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$t_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:

$\sqrt{\Delta}=\sqrt{66560}=\sqrt{1024*65}=\sqrt{1024}*\sqrt{65}=32\sqrt{65}$
$t_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-32\sqrt{65}}{2*16}=\frac{0-32\sqrt{65}}{32}
=-\frac{32\sqrt{65}}{32}
=-\sqrt{65}
$
$t_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+32\sqrt{65}}{2*16}=\frac{0+32\sqrt{65}}{32}
=\frac{32\sqrt{65}}{32}
=\sqrt{65}
$