12.5=x^2/1.1

Solution for 12.5=x^2/1.1 equation:

12.5=x^2/1.1

We move all terms to the left:

12.5-(x^2/1.1)=0

We get rid of parentheses

-x^2/1.1+12.5=0

We multiply all the terms by the denominator


-x^2+(12.5)*1.1=0

We add all the numbers together, and all the variables

-1x^2+13.75=0

a = -1; b = 0; c = +13.75;
Δ = b2-4ac
Δ = 02-4·(-1)·13.75
Δ = 55
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{55}}{2*-1}=\frac{0-\sqrt{55}}{-2}
=-\frac{\sqrt{}}{-2}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+\sqrt{55}}{2*-1}=\frac{0+\sqrt{55}}{-2}
=\frac{\sqrt{}}{-2}
$