x^2/4=5

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Solution for x^2/4=5 equation: 


x in (-oo:+oo)

(x^2)/4 = 5 // - 5

(x^2)/4-5 = 0

1/4*x^2 = 5 // : 1/4

x^2 = 20

x^2 = 20 // ^ 1/2

abs(x) = 2*5^(1/2)

x = 2*5^(1/2) or x = -(2*5^(1/2))

x in { 2*5^(1/2), -(2*5^(1/2)) }

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