(Y-4/5)^2=16/25

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Solution for (Y-4/5)^2=16/25 equation: 


Y in (-oo:+oo)

(Y-(4/5))^2 = 16/25 // - 16/25

(Y-(4/5))^2-(16/25) = 0

(Y-4/5)^2-16/25 = 0

(25*(Y-4/5)^2)/25-16/25 = 0

25*(Y-4/5)^2-16 = 0

25*Y^2-40*Y = 0

25*Y^2-40*Y = 0

5*Y*(5*Y-8) = 0

5*Y-8 = 0 // + 8

5*Y = 8 // : 5

Y = 8/5

5*Y*(Y-8/5) = 0

(5*Y*(Y-8/5))/25 = 0

(5*Y*(Y-8/5))/25 = 0 // * 25

5*Y*(Y-8/5) = 0

( 5*Y )

5*Y = 0 // : 5

Y = 0

( Y-8/5 )

Y-8/5 = 0 // + 8/5

Y = 8/5

Y in { 0, 8/5 }

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