500*0.24=f2*0.04

Solution for 500*0.24=f2*0.04 equation:

500*0.24=f2*0.04

We move all terms to the left:

500*0.24-(f2*0.04)=0

We add all the numbers together, and all the variables

-(+f2*0.04)+500*0.24=0

We add all the numbers together, and all the variables

-(+f2*0.04)+120=0

We get rid of parentheses

-f2*0.04+120=0

Wy multiply elements

-0.04f^2+120=0

a = -0.04; b = 0; c = +120;
Δ = b2-4ac
Δ = 02-4·(-0.04)·120
Δ = 19.2
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$f_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$f_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$f_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-\sqrt{19.2}}{2*-0.04}=\frac{0-\sqrt{19.2}}{-0.08}
=-\frac{\sqrt{}}{-0.08}
$
$f_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+\sqrt{19.2}}{2*-0.04}=\frac{0+\sqrt{19.2}}{-0.08}
=\frac{\sqrt{}}{-0.08}
$