Advanced Math practice question

Answer: 4

3s² + 2 = 50 gives 3s² = 48, s² = 16, s = 4.

Common wrong answers

If you answered 8

8 is 16/2, halving instead of taking the square root.

If you answered 16

16 is s², not s.

If you answered 4.2

4.2 is √(52/3), adding the 2 spares instead of subtracting them.

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