If (4x² + xy) : (3xy – y²) = 12 : 5, find (x + 2y) : (2x + y).

(i) If (4x² + xy) : (3xy – y²) = 12 : 5, find (x + 2y) : (2x + y).
(ii) If y (3x – y) : x (4x + y) = 5 : 12. Find (x² + y²) : (x + y)².

Solution:

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