3w(2w+3)=-2w-3

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Solution for 3w(2w+3)=-2w-3 equation:



3w(2w+3)=-2w-3
We move all terms to the left:
3w(2w+3)-(-2w-3)=0
We multiply parentheses
6w^2+9w-(-2w-3)=0
We get rid of parentheses
6w^2+9w+2w+3=0
We add all the numbers together, and all the variables
6w^2+11w+3=0
a = 6; b = 11; c = +3;
Δ = b2-4ac
Δ = 112-4·6·3
Δ = 49
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$w_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$w_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{49}=7$
$w_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(11)-7}{2*6}=\frac{-18}{12} =-1+1/2 $
$w_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(11)+7}{2*6}=\frac{-4}{12} =-1/3 $

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