2(x+8)=3x(x-6)

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Solution for 2(x+8)=3x(x-6) equation:



2(x+8)=3x(x-6)
We move all terms to the left:
2(x+8)-(3x(x-6))=0
We multiply parentheses
2x-(3x(x-6))+16=0
We calculate terms in parentheses: -(3x(x-6)), so:
3x(x-6)
We multiply parentheses
3x^2-18x
Back to the equation:
-(3x^2-18x)
We get rid of parentheses
-3x^2+2x+18x+16=0
We add all the numbers together, and all the variables
-3x^2+20x+16=0
a = -3; b = 20; c = +16;
Δ = b2-4ac
Δ = 202-4·(-3)·16
Δ = 592
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:
$\sqrt{\Delta}=\sqrt{592}=\sqrt{16*37}=\sqrt{16}*\sqrt{37}=4\sqrt{37}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(20)-4\sqrt{37}}{2*-3}=\frac{-20-4\sqrt{37}}{-6} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(20)+4\sqrt{37}}{2*-3}=\frac{-20+4\sqrt{37}}{-6} $

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