9-36x^2=0

Solution for 9-36x^2=0 equation:

9-36x^2=0

a = -36; b = 0; c = +9;
Δ = b2-4ac
Δ = 02-4·(-36)·9
Δ = 1296
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{1296}=36$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-36}{2*-36}=\frac{-36}{-72}
=1/2
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+36}{2*-36}=\frac{36}{-72}
=-1/2
$