2x^2/3-1=7

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Solution for 2x^2/3-1=7 equation: 


x in (-oo:+oo)

(2*x^2)/3-1 = 7 // - 7

(2*x^2)/3-7-1 = 0

2/3*x^2 = 8 // : 2/3

x^2 = 12

x^2 = 12 // ^ 1/2

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

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

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

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