2.2=6.8/x2

Simple and best practice solution for 2.2=6.8/x2 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 2.2=6.8/x2 equation:



2.2=6.8/x2
We move all terms to the left:
2.2-(6.8/x2)=0
Domain of the equation: x2)!=0
x!=0/1
x!=0
x∈R
We add all the numbers together, and all the variables
-(+6.8/x2)+2.2=0
We get rid of parentheses
-6.8/x2+2.2=0
We multiply all the terms by the denominator
(2.2)*x2-6.8=0
We multiply parentheses
2.2x^2-6.8=0
a = 2.2; b = 0; c = -6.8;
Δ = b2-4ac
Δ = 02-4·2.2·(-6.8)
Δ = 59.84
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-\sqrt{59.84}}{2*2.2}=\frac{0-\sqrt{59.84}}{4.4} =-\frac{\sqrt{}}{4.4} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+\sqrt{59.84}}{2*2.2}=\frac{0+\sqrt{59.84}}{4.4} =\frac{\sqrt{}}{4.4} $

See similar equations:

| -0.3=0.7x-12 | | 6-6n=-7n+3 | | -6+x=8(7+4x) | | .x/3+4/5=2x-5/6 | | x=3+5/6 | | (4/3)x+9/10=5/6 | | x=3/3+x+1/2=15 | | 5x-1+7x-13=6x-4+13 | | 4n+20=-8(n-7) | | 7x-2(4-3x)=5(x-5)-7 | | 6r+24=5(8r-8)-2r | | -7x-8x=-7x-16 | | 12-4/5(r+15)=4 | | -7x-8x=7x-16 | | -7x-8x=7x-11 | | 10=8(2p-3) | | x^2=-69 | | 5(2x+3)+5=5+5(2-5) | | X=3x-5+5x-2 | | -7(-3+4n)=21+7n | | 2t^2-14t+3=0 | | 3x/4+3x-4=22 | | 7-8s=-5 | | -2-5(6n+8)=168 | | 3x/1+3x-4=22 | | 6(x-1)/12=2(x+4)/9 | | -7(-3-7x)=-224 | | -7(-3-7x)=-225 | | -7-3m=11 | | x/4-(5/4x+2/1)=3/2(6x/1-4/1) | | 2/x+5(2+4)=6-5+4 | | 14=4÷x |

Equations solver categories