1357.168=3.24r(2)

Solution for 1357.168=3.24r(2) equation:

1357.168=3.24r(2)

We move all terms to the left:

1357.168-(3.24r(2))=0

We add all the numbers together, and all the variables

-(+3.24r^2)+1357.168=0

We get rid of parentheses

-3.24r^2+1357.168=0

a = -3.24; b = 0; c = +1357.168;
Δ = b2-4ac
Δ = 02-4·(-3.24)·1357.168
Δ = 17588.89728
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$r_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$r_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$r_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-\sqrt{17588.89728}}{2*-3.24}=\frac{0-\sqrt{17588.89728}}{-6.48}
=-\frac{\sqrt{}}{-6.48}
$
$r_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+\sqrt{17588.89728}}{2*-3.24}=\frac{0+\sqrt{17588.89728}}{-6.48}
=\frac{\sqrt{}}{-6.48}
$