Advanced Math practice question

Answer: 6

Multiply by 4: x² = 36. The positive square root is 6.

Common wrong answers

If you answered 3

3 is √9, taking the root before multiplying by 4.

If you answered 18

18 is 36/2, halving instead of taking the square root.

If you answered 36

36 is x², one step short.

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