x2+10,7x+2,7=0

Solution for x2+10,7x+2,7=0 equation:

x2+10.7x+2.7=0

We add all the numbers together, and all the variables

x^2+10.7x+2.7=0

a = 1; b = 10.7; c = +2.7;
Δ = b2-4ac
Δ = 10.72-4·1·2.7
Δ = 103.69
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{-(10.7)-\sqrt{103.69}}{2*1}=\frac{-10.7-\sqrt{103.69}}{2}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(10.7)+\sqrt{103.69}}{2*1}=\frac{-10.7+\sqrt{103.69}}{2}
$