8x(3x+7)=

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Solution for 8x(3x+7)= equation:



8x(3x+7)=
We move all terms to the left:
8x(3x+7)-()=0
We add all the numbers together, and all the variables
8x(3x+7)=0
We multiply parentheses
24x^2+56x=0
a = 24; b = 56; c = 0;
Δ = b2-4ac
Δ = 562-4·24·0
Δ = 3136
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{3136}=56$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(56)-56}{2*24}=\frac{-112}{48} =-2+1/3 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(56)+56}{2*24}=\frac{0}{48} =0 $

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