2k^2+2k-4=0

Simple and best practice solution for 2k^2+2k-4=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 2k^2+2k-4=0 equation: 



2k^2+2k-4=0

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

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


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


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

See similar equations:

| X=84-5y | | Y=-8x^2-3x-13 | | 2x^2-5x+16=152 | | 15t+11=21 | | 2x=7.37(0.5-x) | | 3m+m=7 | | -6y+4=16 | | 7x+7-9=180 | | 3m+2=-13 | | 151/2-31/2=y | | 20.5=2.5a | | n-2.8=9.2 | | (d)=10^1.5dV | | 65(3x)(2x)=180 | | (d)=101.5dV | | q/3=24 | | 16^2x+2=64 | | 9m-9=8m+5 | | 5x-2x=99 | | 5.x^2-8x+15=0 | | 115+(x+10)=180 | | 0.75x+4=0.50x+9 | | 30/4x–4/3=24/6x | | 5x+4-x=-6x-3+11x | | 3.x^2+16x+55=0 | | 12x+9=22x-9 | | 5=4/3x4 | | 1.x^2-12x+32=0 | | x=30+.5x | | 6(2n+1)=6(6n+3)+2 | | 3*3n/3=18/3 | | 3x+4=1/2(x-4) |

Equations solver categories