4x2-2x-2=0

Simple and best practice solution for 4x2-2x-2=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 4x2-2x-2=0 equation: 



4x^2-2x-2=0

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

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


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


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

See similar equations:

| 3x2+20x-4=0 | | 10x2+2x-15=0 | | 6x2-8x+6=0 | | 10x-7x=2+13 | | 11x2-18x+14=0 | | 3x2-6x+14=0 | | 16x2-13x-16=0 | | 17x2+7x-10=0 | | 17x2-18x+4=0 | | 8x2-12x-16=0 | | 13x2-8x-6=0 | | 8x2-16x-1=0 | | 4x2-16x+18=0 | | y=13/37 | | (3b-4)=5(b+6) | | 17^x=1 | | y=-2(37.5-0.5y)+75 | | (2x-5)+(3x+15)=180 | | 0.3x+1.7x=12 | | 4/9=10/a | | 5.4^x+3*8.2^2x-1=4.8^3x | | 5(2x-3)=2(3x+4) | | 28y+5=49y= | | 3=9(3x-3) | | 3=9(3x-3 | | 6n+13=40 | | -7x=-x+18 | | 10u=170 | | 2x+3=-8x+5 | | 5x+4=-4x+6 | | 2=1.732^x | | x^2-3x-28=12 |

Equations solver categories