5+6x+x2=0

Simple and best practice solution for 5+6x+x2=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 5+6x+x2=0 equation:



5+6x+x2=0
We add all the numbers together, and all the variables
x^2+6x+5=0
a = 1; b = 6; c = +5;
Δ = b2-4ac
Δ = 62-4·1·5
Δ = 16
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{16}=4$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(6)-4}{2*1}=\frac{-10}{2} =-5 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(6)+4}{2*1}=\frac{-2}{2} =-1 $

See similar equations:

| 6w÷2=20 | | 2x4.5=9 | | 3(x+4)=2x−1# | | 2y+36+2y=180 | | 13=a/5+6 | | 4t+7/3=13 | | 10=f/6+4 | | g/4+5=11 | | (x–3)2=–4 | | (x-4)×(x-9)=0 | | z/8+6=5 | | 9x-59=2x-3 | | b=3333 | | 43=x+x+15 | | 2(3−4b)=60−2b−3(3b+11) | | 2a+1/2=3a-3/4 | | 5x+4=31+2x9 | | 4-5x÷11=9 | | 15=8+t | | 2(4r-7)=42 | | D=40x24 | | 8h-3h=30 | | 8m-20=39 | | 3x+55=32 | | n=20-n2 | | 4l=33 | | 4j=25 | | 3x÷2+5=11 | | 11x-124=3x-12 | | 8/x=#-9 | | F(-3)=5x2+7 | | (9)-(-6x)=0 |

Equations solver categories