4/25y^2-64

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Solution for 4/25y^2-64 equation: 


y in (-oo:+oo)

(4/25)*y^2-64 = 0

4/25*y^2 = 64 // : 4/25

y^2 = 400

y^2 = 400 // ^ 1/2

abs(y) = 20

y = 20 or y = -20

y in { 20, -20 }

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