(20x^2-16)/(2x-2)

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Solution for (20x^2-16)/(2x-2) equation: 


D( x )

2*x-2 = 0

2*x-2 = 0

2*x-2 = 0

2*x-2 = 0 // + 2

2*x = 2 // : 2

x = 2/2

x = 1

x in (-oo:1) U (1:+oo)

(20*x^2-16)/(2*x-2) = 0

20*x^2 = 16 // : 20

x^2 = 4/5

x^2 = 4/5 // ^ 1/2

abs(x) = (4/5)^(1/2)

x = (4/5)^(1/2) or x = -(4/5)^(1/2)

x in { (4/5)^(1/2), -(4/5)^(1/2) }

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