Mister Exam

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Identical expressions
(x/ two - two)*exp(-x/ two) = zero
(x divide by 2 minus 2) multiply by exponent of ( minus x divide by 2) equally 0
(x divide by two minus two) multiply by exponent of ( minus x divide by two) equally zero
(x/2 - 2)exp(-x/2) = 0
x/2 - 2exp-x/2 = 0
(x divide by 2 - 2)*exp(-x divide by 2) = 0
Similar expressions
(x/2 - 2)*exp(x/2) = 0
(x/2 + 2)*exp(-x/2) = 0

(x/2 - 2)*exp(-x/2) = 0 equation