Multiplication of two numbers equals addition of two numbers What's the trick?

1. If you say the two numbers are equal
Let this number be x, then according to the requirement: x ^ 2 = 2x
That is, X (X-2) = 0, we can know that x = 0 or x = 2
An example where multiplication of two numbers equals addition of two numbers is 0 and 2
2. In general, let two numbers be x and Y respectively
X + y = XY, y = x / (x-1), when x ≠ 1, X and y have innumerable solutions

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