(x^2/25)-1=11

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Solution for (x^2/25)-1=11 equation: 


x in (-oo:+oo)

(x^2)/25-1 = 11 // - 11

(x^2)/25-11-1 = 0

1/25*x^2 = 12 // : 1/25

x^2 = 300

x^2 = 300 // ^ 1/2

abs(x) = 10*3^(1/2)

x = 10*3^(1/2) or x = -(10*3^(1/2))

x in { 10*3^(1/2), -(10*3^(1/2)) }

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