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2023 AMC 12A Question 23

AMC12 · 2023 AMC 12A

Question 23

How many ordered pairs of positive real numbers $(a,b)$ satisfy the equation $$
\begin{gathered} (1+2a)(2+2b)(2a+b)\\ {}=32ab? \end{gathered}
$$
  1. $0$
  2. $1$
  3. $2$
  4. $3$
  5. an infinite number