X^2/20=7

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Solution for X^2/20=7 equation: 


X in (-oo:+oo)

(X^2)/20 = 7 // - 7

(X^2)/20-7 = 0

1/20*X^2 = 7 // : 1/20

X^2 = 140

X^2 = 140 // ^ 1/2

abs(X) = 2*35^(1/2)

X = 2*35^(1/2) or X = -(2*35^(1/2))

X in { 2*35^(1/2), -(2*35^(1/2)) }

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