M^2=4/9

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Solution for M^2=4/9 equation: 


M in (-oo:+oo)

M^2 = 4/9 // - 4/9

M^2-(4/9) = 0

M^2-4/9 = 0

1*M^2 = 4/9 // : 1

M^2 = 4/9

M^2 = 4/9 // ^ 1/2

abs(M) = 2/3

M = 2/3 or M = -2/3

M in { 2/3, -2/3 }

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