(1/7)-12/4-x^2

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Solution for (1/7)-12/4-x^2 equation: 


x in (-oo:+oo)

1/7-x^2-(12/4) = 0

1/7-x^2-3 = 0

-1*x^2 = 20/7 // : -1

x^2 = -20/7

x belongs to the empty set

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