2z^2+10z+8=0

Simple and best practice solution for 2z^2+10z+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 2z^2+10z+8=0 equation: 



2z^2+10z+8=0

a = 2; b = 10; c = +8;
Δ = b2-4ac
Δ = 102-4·2·8
Δ = 36
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$z_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$z_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

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


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


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

See similar equations:

| 14x+6/3=-8+4x | | -26y-59=135 | | z=5699 | | 9(2x-9)=33 | | 1.2x^2+0,4x+2,3=0 | | x+2/8=31/12 | | 9x+1/12+x-4/3=2 | | 41•z=5699 | | 5(x-32)-3(x+32)=10x | | w+254=934 | | 6x+12x-9+8x+10+x=0 | | 7.7+(8.1*x)=x+16.8 | | 8b+(3b-15)=40 | | 170/80=2000/x | | 50-4x÷6=x-5 | | X+0.09x=40 | | -43x-50=x-72 | | 170/80=2000/xx= | | 8=5(x-1) | | 5y-20=5(y-4) | | 2=-3x=38 | | 4x-14÷5=-6÷1+6x+10÷4 | | 5^(3x)+5^(5x-1)=4 | | 8(4x-4)=46 | | 96x9=864 | | 3x+2=(4x-38)° | | 6m=1/8 | | 2(t+3)=6 | | 364t•1=364t | | 3x-6x^=2x^-5x | | X-y=223 | | 2x-30=2x+10 |

Equations solver categories