(a+6)a-8)=-

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Solution for (a+6)a-8)=- equation:



(a+6)a-8)=-
We move all terms to the left:
(a+6)a-8)-(-)=0
We add all the numbers together, and all the variables
(a+6)a-8)-0=0
We add all the numbers together, and all the variables
(a+6)a=0
We multiply parentheses
a^2+6a=0
a = 1; b = 6; c = 0;
Δ = b2-4ac
Δ = 62-4·1·0
Δ = 36
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$a_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$a_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{36}=6$
$a_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(6)-6}{2*1}=\frac{-12}{2} =-6 $
$a_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(6)+6}{2*1}=\frac{0}{2} =0 $

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