8-8x2+2=0

Simple and best practice solution for 8-8x2+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 8-8x2+2=0 equation:



8-8x^2+2=0
We add all the numbers together, and all the variables
-8x^2+10=0
a = -8; b = 0; c = +10;
Δ = b2-4ac
Δ = 02-4·(-8)·10
Δ = 320
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:
$\sqrt{\Delta}=\sqrt{320}=\sqrt{64*5}=\sqrt{64}*\sqrt{5}=8\sqrt{5}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-8\sqrt{5}}{2*-8}=\frac{0-8\sqrt{5}}{-16} =-\frac{8\sqrt{5}}{-16} =-\frac{\sqrt{5}}{-2} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+8\sqrt{5}}{2*-8}=\frac{0+8\sqrt{5}}{-16} =\frac{8\sqrt{5}}{-16} =\frac{\sqrt{5}}{-2} $

See similar equations:

| 128/x=65 | | R(8.3)r=10 | | 47+117+x=180 | | 120+43+x=180 | | 3-7w-11=4/7w | | F(x)=5/3x-1 | | 16+18+x=180 | | 9338=58(l+52) | | (4x+108)+2x=180 | | 57+49+x=180 | | 48+38+x=180 | | 3a=2a+50 | | 9v=24 | | 48=1/2b8 | | 4x+27=3x-4 | | 2.2x3.7=8.14 | | x=300-0.4x | | 2.2x=3.7 | | (2x)(4x)=20 | | -7y+2y-3y=10-8 | | 729.8=35.6(l+6.4) | | 6-7n-8=-23 | | 6x+2-7x+4=45 | | -7+2y-3y=10-8 | | H=180-16t^2 | | -11/4=k/4 | | 8=10+x/9 | | 2x30=78 | | -5-7x=-110 | | 9(5a+-7)+-7a+9=9(5a+-7)+-7a+9 | | 17=b/2+9 | | -2=-4+x/6 |

Equations solver categories