n^2/4-9/4 - solution

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Solution for n^2/4-9/4 equation:

n in (-oo:+oo)

(n^2)/4-(9/4) = 0

(n^2)/4-9/4 = 0

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

n^2 = 9

n^2 = 9 // ^ 1/2

abs(n) = 3

n = 3 or n = -3

n in { 3, -3 }

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