l2+9=1333.96

Solution for l2+9=1333.96 equation:

l2+9=1333.96

We move all terms to the left:

l2+9-(1333.96)=0

We add all the numbers together, and all the variables

l^2-1324.96=0

a = 1; b = 0; c = -1324.96;
Δ = b2-4ac
Δ = 02-4·1·(-1324.96)
Δ = 5299.84
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$l_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$l_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$l_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-\sqrt{5299.84}}{2*1}=\frac{0-\sqrt{5299.84}}{2}
=-\frac{\sqrt{}}{2}
$
$l_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+\sqrt{5299.84}}{2*1}=\frac{0+\sqrt{5299.84}}{2}
=\frac{\sqrt{}}{2}
$