9a^2-4/25

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Solution for 9a^2-4/25 equation: 


a in (-oo:+oo)

9*a^2-(4/25) = 0

9*a^2-4/25 = 0

9*a^2 = 4/25 // : 9

a^2 = 4/225

a^2 = 4/225 // ^ 1/2

abs(a) = 2/15

a = 2/15 or a = -2/15

a in { 2/15, -2/15 }

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