Answer to Question #79426 in Differential Equations for Prince

Question #79426

Transform the parabolic equations
4Uxx + 12Uxy + 9Uyy − 2Ux + U = 0

A. uξξ −1/3uη +1/9u = −
B. uξξ −1/3uη +1/9u = 0
C. uξξ − uηu=0
D. uξξ−1/5uηξ +1/2u=0

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