x^2/25=16

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Solution for x^2/25=16 equation: 


x in (-oo:+oo)

(x^2)/25 = 16 // - 16

(x^2)/25-16 = 0

1/25*x^2 = 16 // : 1/25

x^2 = 400

x^2 = 400 // ^ 1/2

abs(x) = 20

x = 20 or x = -20

x in { 20, -20 }

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