Question

Calculate dy/dx. You need not expand your answer. What am I doing wrong with this one? >_<

y = (7x^2-9x+11)/2x+4

I used the quotient rule, and came up with:

dy/dx = (14x^2-38x+22)/(2x+4)^2

However, thats not the correct answer, oof.

Answer 1

dy/dx=14x-9/2

Answer 2

Wait, how are you left with just 2 in the denominator?

Answer 3

Not the correct answer . . . I'm not sure how you got 2 by itself in the denominator either??