2g^2-5g-8=0

Simple and best practice solution for 2g^2-5g-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 2g^2-5g-8=0 equation: 



2g^2-5g-8=0

a = 2; b = -5; c = -8;
Δ = b2-4ac
Δ = -52-4·2·(-8)
Δ = 89
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$g_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$g_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$g_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-5)-\sqrt{89}}{2*2}=\frac{5-\sqrt{89}}{4}
$


$g_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-5)+\sqrt{89}}{2*2}=\frac{5+\sqrt{89}}{4}
$

See similar equations:

| 2n+3=30n | | -5+15t=-4t | | 4=-x2+3x-8 | | -19a+-9a+15a=13 | | 2​(4s−2​)−4=−2​(9s+3​)−2 | | 7x+3=x-11 | | 8(5+4a)+11=-5(3-7a) | | d-2.8/0.2=-4 | | 4(2x+1)=-2(3-4x) | | 3t+5-5t+3=1-2t+7 | | x^2-9x=9=0 | | x/7+5=45 | | 4m=m2 | | 125^x+5=25^x-4 | | 11y+18=7 | | -2(x-3)=5(2x+3 | | 49v^2+28v+4=0 | | 1/6x+2/3=1/2x+2/3 | | 3=2x+10=15 | | 3w-2=4w+8 | | x^2+9x=9=0 | | 13u-10u-2u-u+2u=10 | | 3x+3(3x+13)=183 | | 2x-(7)=0 | | 2x-1/6=2/3 | | 37-18+w=67 | | x^2+-9x=9=0 | | 3/16x-25=x | | 48=5u+3u | | 4h—6=22 | | 60÷5{7-4}=a | | 5t+9/2=12 |

Equations solver categories