3,14*(x*x)=0,13

Solution for 3,14*(x*x)=0,13 equation:

3.14*(x*x)=0.13

We move all terms to the left:

3.14*(x*x)-(0.13)=0

We add all the numbers together, and all the variables

3.14*(+x*x)-(0.13)=0

We add all the numbers together, and all the variables

3.14*(+x*x)-0.13=0

We multiply parentheses

3.14x^2-0.13=0

a = 3.14; b = 0; c = -0.13;
Δ = b2-4ac
Δ = 02-4·3.14·(-0.13)
Δ = 1.6328
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{1.6328}}{2*3.14}=\frac{0-\sqrt{1.6328}}{6.28}
=-\frac{\sqrt{}}{6.28}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+\sqrt{1.6328}}{2*3.14}=\frac{0+\sqrt{1.6328}}{6.28}
=\frac{\sqrt{}}{6.28}
$