2.65=h2

Solution for 2.65=h2 equation:

2.65=h2

We move all terms to the left:

2.65-(h2)=0

We add all the numbers together, and all the variables

-1h^2+2.65=0

a = -1; b = 0; c = +2.65;
Δ = b2-4ac
Δ = 02-4·(-1)·2.65
Δ = 10.6
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$h_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$h_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$h_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-\sqrt{10.6}}{2*-1}=\frac{0-\sqrt{10.6}}{-2}
=-\frac{\sqrt{}}{-2}
$
$h_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+\sqrt{10.6}}{2*-1}=\frac{0+\sqrt{10.6}}{-2}
=\frac{\sqrt{}}{-2}
$