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July 29, 2015

July 29, 2015

Posted by **sara** on Thursday, May 8, 2008 at 11:56pm.

i keep getting the wrong answer for this problem evn when plugging 2 in for y.

- calc -
**Amy**, Friday, May 9, 2008 at 12:22amyou can try this....

so f'(x)= -8x-3/(1+ xy)

Plug in 10 for x and 2 for y

(-8(-10)-3)/(1+(-10)(2)= -3.66667

- calc -
**rudy**, Friday, May 9, 2008 at 12:33amhow do u get the - 8x over one?