(a2+6)/2=11

Solution for (a2+6)/2=11 equation:

(a2+6)/2=11

We move all terms to the left:

(a2+6)/2-(11)=0

We add all the numbers together, and all the variables

(+a^2+6)/2-11=0

We multiply all the terms by the denominator


(+a^2+6)-11*2=0

We add all the numbers together, and all the variables

(+a^2+6)-22=0

We get rid of parentheses

a^2+6-22=0

We add all the numbers together, and all the variables

a^2-16=0

a = 1; b = 0; c = -16;
Δ = b2-4ac
Δ = 02-4·1·(-16)
Δ = 64
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$a_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$a_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{64}=8$
$a_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-8}{2*1}=\frac{-8}{2}
=-4
$
$a_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+8}{2*1}=\frac{8}{2}
=4
$