(1/81)-(y4-256)

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Solution for (1/81)-(y4-256) equation: 


y in (-oo:+oo)

1/81-y^4+256 = 0

-1*y^4 = -20737/81 // : -1

y^4 = 20737/81

y^4 = 20737/81 // ^ 1/4

abs(y) = (20737/81)^(1/4)

y = (20737/81)^(1/4) or y = -(20737/81)^(1/4)

y in { (20737/81)^(1/4), -(20737/81)^(1/4) }

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