58=0.006x^2

Solution for 58=0.006x^2 equation:

58=0.006x^2

We move all terms to the left:

58-(0.006x^2)=0

We get rid of parentheses

-0.006x^2+58=0

a = -0.006; b = 0; c = +58;
Δ = b2-4ac
Δ = 02-4·(-0.006)·58
Δ = 1.392
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-\sqrt{1.392}}{2*-0.006}=\frac{0-\sqrt{1.392}}{-0.012}
=-\frac{\sqrt{}}{-0.012}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+\sqrt{1.392}}{2*-0.006}=\frac{0+\sqrt{1.392}}{-0.012}
=\frac{\sqrt{}}{-0.012}
$