Posted by Lyle on Sunday, March 15, 2009 at 10:09pm.
If 2 x^2+ 3 x + xy = 5 and y( 5 ) = 12, find y'( 5 ) by implicit differentiation.

Math help  bobpursley, Sunday, March 15, 2009 at 10:15pm
4x dx + 3dx+ y dx + x dy=0
4x dx + 3dx+ y dx = x dy
dy/dx= 43/xy
y'=43/5+12
check that. 
Math help  Lyle, Sunday, March 15, 2009 at 10:31pm
i'm sorry but i don't know how you got that number did u get ((4)3)/(5+12) or something else?