x^2/9=28

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Solution for x^2/9=28 equation: 


x in (-oo:+oo)

(x^2)/9 = 28 // - 28

(x^2)/9-28 = 0

1/9*x^2 = 28 // : 1/9

x^2 = 252

x^2 = 252 // ^ 1/2

abs(x) = 6*7^(1/2)

x = 6*7^(1/2) or x = -(6*7^(1/2))

x in { 6*7^(1/2), -(6*7^(1/2)) }

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