2x^2+5x-31=0

Simple and best practice solution for 2x^2+5x-31=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 2x^2+5x-31=0 equation: 



2x^2+5x-31=0

a = 2; b = 5; c = -31;
Δ = b2-4ac
Δ = 52-4·2·(-31)
Δ = 273
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{-(5)-\sqrt{273}}{2*2}=\frac{-5-\sqrt{273}}{4}
$


$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(5)+\sqrt{273}}{2*2}=\frac{-5+\sqrt{273}}{4}
$

See similar equations:

| 13x-2+15x-2=180 | | 9.48+3.3w=7.24+2.5w | | 180=x+20+(5x+10) | | 8/9z=32 | | 2.4x-4.9=6.5 | | 3x+214.12=462.23 | | 90=x+20+(x+10) | | 6x−5=2x+13 | | 10=m18 | | 4x-35=90 | | x+-16=-16 | | 11y+11y=220 | | Y=10x=18 | | 10x²-2x=0 | | (Y+15)+(2y-5)=90 | | 180=2x+(x+30) | | 4x-35(3×+10)=90 | | 5.8+8h+2.29=-6.7h+8.09 | | 180=2x+(x=30) | | -9=-5+r3r3 | | 4x-35(3×+10)=180 | | 5-2x(x=4) | | 3(x–12)+3x=396 | | 82=16t^2 | | 5-2x4=x | | -10m+7=-1-8m | | 15=p+(-85) | | 6x−10=74 | | 0=1000-200p | | Y=-16x^2+32x+8 | | 3x-2=11* | | 2a(a+28)=180 |

Equations solver categories