(y-3/7)^2=-8/9

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Solution for (y-3/7)^2=-8/9 equation: 


y in (-oo:+oo)

(y-(3/7))^2 = -8/9 // + -8/9

(y-(3/7))^2-(-8/9) = 0

(y-3/7)^2+8/9 = 0

(9*(y-3/7)^2)/9+8/9 = 0

9*(y-3/7)^2+8 = 0

9*y^2-54/7*y+473/49 = 0

9*y^2-54/7*y+473/49 = 0

9*y^2-54/7*y+473/49 = 0

DELTA = (-54/7)^2-(4*9*473/49)

DELTA = -288

DELTA < 0

1 = 0

1/9 = 0

1/9 = 0 // * 9

1 = 0

y belongs to the empty set

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