Quote:
Originally posted by wsjb78
Add the necessary math symbols to the left side of the equation to make the following correct:
3 4 5 = 90
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You have to use the factorial symbol ( ! )
3! = 1 x 2 x 3 = 6
4! = 1 x 2 x 3 x 4 = 3! x4 = 24
5! = 4! x 5 = 120
-3!-4!+5! = -6-24+120 = 90