10=x2+4x+5

Solution for 10=x2+4x+5 equation:

10=x2+4x+5

We move all terms to the left:

10-(x2+4x+5)=0

We add all the numbers together, and all the variables

-(+x^2+4x+5)+10=0

We get rid of parentheses

-x^2-4x-5+10=0

We add all the numbers together, and all the variables

-1x^2-4x+5=0

a = -1; b = -4; c = +5;
Δ = b2-4ac
Δ = -42-4·(-1)·5
Δ = 36
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{36}=6$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-4)-6}{2*-1}=\frac{-2}{-2}
=1
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-4)+6}{2*-1}=\frac{10}{-2}
=-5
$