mark1
Nov19-04, 08:49 AM
The following problem appears in my textbook (before it discusses the quotient or product rule, so those rules cannot be used for the answer):
Find the derivative of the function: \frac{x^3-3x^2+4}{x^2}
I brought the denominator to the top and multiplied it out to get {x-3+4x^-2}[/ltex]. I then took the derivative of that to get [tex]{1-0-8x^-3}, which can be simplified to \frac{-7}{x^3}.
However, in the back of my book, the answer is given as \frac{x^3-8}{x^3}.
Please enlighten me as to where i went wrong.
Find the derivative of the function: \frac{x^3-3x^2+4}{x^2}
I brought the denominator to the top and multiplied it out to get {x-3+4x^-2}[/ltex]. I then took the derivative of that to get [tex]{1-0-8x^-3}, which can be simplified to \frac{-7}{x^3}.
However, in the back of my book, the answer is given as \frac{x^3-8}{x^3}.
Please enlighten me as to where i went wrong.