Advanced Math practice question

Answer: 8

Square both sides: 2x = 16, so x = 8.

Common wrong answers

If you answered 2

2 comes from √(2x) = 4 solved as 2x = 4; squaring the 4 gives 16.

If you answered 16

16 is 2x, one step short; divide by 2.

If you answered 32

32 is 16 × 2, multiplying instead of dividing.

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