5w(2w-3)=-8w+12

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Solution for 5w(2w-3)=-8w+12 equation:



5w(2w-3)=-8w+12
We move all terms to the left:
5w(2w-3)-(-8w+12)=0
We multiply parentheses
10w^2-15w-(-8w+12)=0
We get rid of parentheses
10w^2-15w+8w-12=0
We add all the numbers together, and all the variables
10w^2-7w-12=0
a = 10; b = -7; c = -12;
Δ = b2-4ac
Δ = -72-4·10·(-12)
Δ = 529
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$w_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$w_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{529}=23$
$w_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-7)-23}{2*10}=\frac{-16}{20} =-4/5 $
$w_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-7)+23}{2*10}=\frac{30}{20} =1+1/2 $

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