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(4w-6)(2-w)=0
We add all the numbers together, and all the variables
(4w-6)(-1w+2)=0
We multiply parentheses ..
(-4w^2+8w+6w-12)=0
We get rid of parentheses
-4w^2+8w+6w-12=0
We add all the numbers together, and all the variables
-4w^2+14w-12=0
a = -4; b = 14; c = -12;
Δ = b2-4ac
Δ = 142-4·(-4)·(-12)
Δ = 4
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{4}=2$$w_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(14)-2}{2*-4}=\frac{-16}{-8} =+2 $$w_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(14)+2}{2*-4}=\frac{-12}{-8} =1+1/2 $
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