Advanced Math practice question

Answer: 3

Divide by 5: x² = 9. The positive square root is x = 3.

Common wrong answers

If you answered 5

5 is the coefficient, not the solution; 5(5)² = 125, not 45.

If you answered 9

9 is x², one step short. Take the square root.

If you answered 6.7

6.7 is about √45, taking the root before dividing by 5. Divide first: x² = 9.

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