24=-9d(6d+8)

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Solution for 24=-9d(6d+8) equation: 



24=-9d(6d+8)

We move all terms to the left:

24-(-9d(6d+8))=0



We calculate terms in parentheses: -(-9d(6d+8)), so:

-9d(6d+8)

We multiply parentheses

-54d^2-72d

Back to the equation:

-(-54d^2-72d)



We get rid of parentheses

54d^2+72d+24=0

a = 54; b = 72; c = +24;
Δ = b2-4ac
Δ = 722-4·54·24
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$d=\frac{-b}{2a}=\frac{-72}{108}=-2/3$

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