(y-2/3)^2=4/9

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Solution for (y-2/3)^2=4/9 equation: 


y in (-oo:+oo)

(y-(2/3))^2 = 4/9 // - 4/9

(y-(2/3))^2-(4/9) = 0

(y-2/3)^2-4/9 = 0

(9*(y-2/3)^2)/9-4/9 = 0

9*(y-2/3)^2-4 = 0

9*y^2-12*y = 0

9*y^2-12*y = 0

3*y*(3*y-4) = 0

3*y-4 = 0 // + 4

3*y = 4 // : 3

y = 4/3

3*y*(y-4/3) = 0

(3*y*(y-4/3))/9 = 0

(3*y*(y-4/3))/9 = 0 // * 9

3*y*(y-4/3) = 0

( 3*y )

3*y = 0 // : 3

y = 0

( y-4/3 )

y-4/3 = 0 // + 4/3

y = 4/3

y in { 0, 4/3 }

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