3x(4x+3)=0

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Solution for 3x(4x+3)=0 equation:



3x(4x+3)=0
We multiply parentheses
12x^2+9x=0
a = 12; b = 9; c = 0;
Δ = b2-4ac
Δ = 92-4·12·0
Δ = 81
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{81}=9$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(9)-9}{2*12}=\frac{-18}{24} =-3/4 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(9)+9}{2*12}=\frac{0}{24} =0 $

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