16Hit1600
Advanced MathEasyNumber whose square is four times itself

Advanced Math practice question

The square of a positive number is 4 times the number. What is the number?

Answer: 4

n² = 4n and n > 0 give n = 4.

Common wrong answers

If you answered 0
0 satisfies n² = 4n but is not positive.
If you answered 2
2 gives 4 = 8, which is false.
If you answered 16
16 is 4², not the number.

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