(4x-3)(2x+3)=0

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Solution for (4x-3)(2x+3)=0 equation:



(4x-3)(2x+3)=0
We multiply parentheses ..
(+8x^2+12x-6x-9)=0
We get rid of parentheses
8x^2+12x-6x-9=0
We add all the numbers together, and all the variables
8x^2+6x-9=0
a = 8; b = 6; c = -9;
Δ = b2-4ac
Δ = 62-4·8·(-9)
Δ = 324
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{324}=18$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(6)-18}{2*8}=\frac{-24}{16} =-1+1/2 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(6)+18}{2*8}=\frac{12}{16} =3/4 $

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