2023 AMC 12A Problem 10


Positive real numbers xx and yy satisfy y3=x2y^3 = x^2 and (yx)2=4y2(y-x)^2 = 4y^2 . What is x+yx+y ?

(A) 12(B) 18(C) 24(D) 36(E) 42\textbf{(A)}\ 12 \qquad \textbf{(B)}\ 18 \qquad \textbf{(C)}\ 24 \qquad \textbf{(D)}\ 36 \qquad \textbf{(E)}\ 42


Full credit goes to MAA for authoring these problems. These problems were taken on the AOPS website.

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Category: AMC 12A
Points: 2
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