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Algebra

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Difficult

Square Side Length: Special Products

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A square has the area of $16x^2y^2 + 8xy + 1$. What is the length of one side?

A

$2xy + 2$

B

$4xy + 1$

C

$4x^2y^2 + 1$

D

$2x^2y^2 + 1$