a^2/4-16=0

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Solution for a^2/4-16=0 equation: 


a in (-oo:+oo)

(a^2)/4-16 = 0

1/4*a^2 = 16 // : 1/4

a^2 = 64

a^2 = 64 // ^ 1/2

abs(a) = 8

a = 8 or a = -8

a in { 8, -8 }

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