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Mathematics 13 Online
OpenStudy (anonymous):

Suppose 5 x^2+ 4 x + xy = 3 and y( 3 ) = -18. Find y'( 3 ) by implicit differentiation. No clue on what to do with some of the information. When I took the derivative I got y'=-11x-y-4

OpenStudy (anonymous):

You first must differentiate both sides of the equation with respect to x.

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