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Mathematics 7 Online
OpenStudy (anonymous):

find the derivative without simplifying answer

OpenStudy (anonymous):

\[f(x)=\frac{ 3x^2-2x+6 }{ 2x+3}\]

OpenStudy (kc_kennylau):

Now it's the quotient rule :)

OpenStudy (kc_kennylau):

okay then

OpenStudy (bahrom7893):

Or for people like myself who never remember what to subtract from what in the quotient rule, you can rewrite the fraction as:\[f(x) = (3x^2-2x+6)(2x+3)^{-1}\]and use the chain rule (in which case the order never matters since it's a sum of products anyway)

OpenStudy (anonymous):

i have the answer can you check it

OpenStudy (anonymous):

The answer that i got was y=\[\frac{ (6x-2)(2x+3)-(3x^2-2x+6)(2x) }{ (2x+3)^2 }\]

OpenStudy (anonymous):

is this right?

OpenStudy (radar):

shouldn't the (2x) in the numberator just be 2

OpenStudy (anonymous):

oh yes. sorry about that

OpenStudy (anonymous):

Thank you

OpenStudy (radar):

You're welcome.

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