Question: 1. If z = x3 + 4x2y + 6y2, find zx and zy. 2. If z = 3xy + y2, find zx and zy.

1. If z = x3 + 4x2y + 6y2, find zx and zy.
2. If z = 3xy + y2, find zx and zy.

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