x^2/7-78/7

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Solution for x^2/7-78/7 equation: 


x in (-oo:+oo)

(x^2)/7-(78/7) = 0

(x^2)/7-78/7 = 0

1/7*x^2 = 78/7 // : 1/7

x^2 = 78

x^2 = 78 // ^ 1/2

abs(x) = 78^(1/2)

x = 78^(1/2) or x = -78^(1/2)

x in { 78^(1/2), -78^(1/2) }

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