Advanced Math practice question

Answer: A. 9x⁴y²

Square each factor: 3² = 9, (x²)² = x⁴, y² = y².

Why the other answers are wrong

B. 6x⁴y²

3 squared is 9, not 6.

C. 9x²y²

(x²)² is x⁴, not x².

D. 3x⁴y²

The 3 must be squared too.

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