x*(x*0.15)=50

Solution for x*(x*0.15)=50 equation:

x*(x*0.15)=50

We move all terms to the left:

x*(x*0.15)-(50)=0

We add all the numbers together, and all the variables

x*(+x*0.15)-50=0

We multiply parentheses

0.15x^2-50=0

a = 0.15; b = 0; c = -50;
Δ = b2-4ac
Δ = 02-4·0.15·(-50)
Δ = 30
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{30}}{2*0.15}=\frac{0-\sqrt{30}}{0.3}
=-\frac{\sqrt{}}{0.3}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+\sqrt{30}}{2*0.15}=\frac{0+\sqrt{30}}{0.3}
=\frac{\sqrt{}}{0.3}
$