Mister Exam

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Identical expressions
(one - two /x^ two)*sign(x + three + two /x) = zero
(1 minus 2 divide by x squared ) multiply by sign(x plus 3 plus 2 divide by x) equally 0
(one minus two divide by x to the power of two) multiply by sign(x plus three plus two divide by x) equally zero
(1 - 2/x2)*sign(x + 3 + 2/x) = 0
1 - 2/x2*signx + 3 + 2/x = 0
(1 - 2/x²)*sign(x + 3 + 2/x) = 0
(1 - 2/x to the power of 2)*sign(x + 3 + 2/x) = 0
(1 - 2/x^2)sign(x + 3 + 2/x) = 0
(1 - 2/x2)sign(x + 3 + 2/x) = 0
1 - 2/x2signx + 3 + 2/x = 0
1 - 2/x^2signx + 3 + 2/x = 0
(1 - 2 divide by x^2)*sign(x + 3 + 2 divide by x) = 0
Similar expressions
(1 - 2/x^2)*sign(x + 3 - 2/x) = 0
(1 - 2/x^2)*sign(x - 3 + 2/x) = 0
(1 + 2/x^2)*sign(x + 3 + 2/x) = 0

(1 - 2/x^2)*sign(x + 3 + 2/x) = 0 equation