1728=4x*3x

Solution for 1728=4x*3x equation:

1728=4x*3x

We move all terms to the left:

1728-(4x*3x)=0

We add all the numbers together, and all the variables

-(+4x*3x)+1728=0

We get rid of parentheses

-4x*3x+1728=0

Wy multiply elements

-12x^2+1728=0

a = -12; b = 0; c = +1728;
Δ = b2-4ac
Δ = 02-4·(-12)·1728
Δ = 82944
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{82944}=288$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-288}{2*-12}=\frac{-288}{-24}
=+12
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+288}{2*-12}=\frac{288}{-24}
=-12
$