document.write( "Question 585268: find f sub yx (x,y) if f(x,y) = (3x-8y)^6\r
\n" ); document.write( "\n" ); document.write( "I started finding f sub y:
\n" ); document.write( "6 (3x-8y)^5 * -8 \r
\n" ); document.write( "\n" ); document.write( "How do I continue it to get f sub yx?\r
\n" ); document.write( "\n" ); document.write( "Thank You
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Algebra.Com's Answer #373247 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
Differentiate 6(3x-8y)^5 * -8, but this time differentiate with respect to x. \n" ); document.write( "
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