Using the Substitution method, find the maximum value of(adsbygoogle = window.adsbygoogle || []).push({});

4x-2xy+3y subject to the constraint 4x-y=2

I can do the 1st part:

4x-y=2--->

4x-2=y

substitute this into the original equation:

4x-2x(4x-2)+3(4x-2)

Hope that right so far! but dont know where to go from there? any one could help plz?

thanks ;)

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# Homework Help: Got a question with substitution?

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