if the double of the natural number is equal to the square of the number, find the number
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If the double of a natural number is equal to the square of the number, what is the number?
If the double of a natural number is equal to the square of the number, what is the number?
I believe this would be the number 2. That’s something I already know without checking.
Mathematically:
x^2 = 2x so x^2 - 2x = 0
x(x-2) = 0 meaning that x=0 or x = 2
As is often the case with these, a nonsense answer (0) must be discarded meaning x=2. If you classify 0 as a natural number, then 0 is valid too (but I think 0 isn’t classified that way - not sure about that).
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