e^2-2e-8=0

Simple and best practice solution for e^2-2e-8=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for e^2-2e-8=0 equation: 



e^2-2e-8=0

a = 1; b = -2; c = -8;
Δ = b2-4ac
Δ = -22-4·1·(-8)
Δ = 36
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$e_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$e_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{36}=6$


$e_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-2)-6}{2*1}=\frac{-4}{2}
=-2
$


$e_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-2)+6}{2*1}=\frac{8}{2}
=4
$

See similar equations:

| d²+7d-5=0 | | -45=6w+15 | | n-2=6n= | | 3/4b=12/2 | | 7k=8k-k | | 2x+14=3(x+5) | | 29.4+y=78.4 | | 8y-20=y+15 | | -5.2=5.1y-4.6y+5.3 | | 14.7+y=44.1 | | 4.9+y=19.6 | | 2(-5-1.5x)=-5(0.2-8) | | 3b/4=12/2 | | 2(-5-1.5x)=-5 | | 2t2+50=0 | | x×2/3+5=27 | | -6(v+3)+3v+5=5v+7 | | 5(x-3=5x-15 | | 42+1.3x=122-1.2 | | 40=7x-54 | | ​2(6​)-2x=3 | | -8=15x+22 | | 7(8-(-7x-5))=294x+266 | | (x-4)^2-9=16 | | 10x-26=9x-2 | | 9x+7-4(x+1)=8x+5 | | 9x-13=10x-19 | | s-71=-s-7 | | -5x+2x+6-1=-1 | | -9g=-3g-9(g+2) | | y-82=-y-4 | | x²-9=25 |

Equations solver categories