Anyone Know Calculus? I Need Help

[JDawg1536]

I need help finding the derivative of (2+x-x^2)/(x+1)^2

I'm using the quotient rule and ****ing it up... Anyone know how to do it?

[Shol'va]

Hopefully this will help.

http://www.karlscalculus.org/divrules.html

["Maximus"]

Check the following out.. I tried to break things down as much as I could, as I understand that calculus tends to be a complete culture shock for some of us.

We have this:

(2+x-x^2)/(x+1)^2

--First, reduce the expression by canceling out the common factor terms (x+1) from both numerator and denominator.

ex: -((x+1)(x-2)) / (x+1)(x+1)

--Then, after reducing the above equation, you find the derivative of the expression:

d/dx = -(x-2)/(x+1)

--*As you correctly stated, using the quotient rule, that yields:

d/dx = -(x+1)(x-2)/(x+1)^2

--Simplyfing it a bit further, you get:

d/dx = -(x-2)/(x+1) = 1/((x+1)(x-2)/((x+1)^2)

--Multiplying by the reciprocal:

(1/-(x+1)(x-2))(1/((x+1)^2)

--Finally, you combine common factors (x+1) by exponential sums:

[-1/(x+1)^3(x-2)]

Let me know if you have questions about this.

Max

[JDawg1536]

Thanks for you help, man. I'm gonna look things over and see if I can get it now. I'll most likely be back... this shit is whack.

[Hoggage_54]

[Hoggage_54]

[Times Roman]

it's been 30 years... sorry!

[Kawigirl]

If it wasn't for the "bell" curve used back when I was in university....would have NEVER passed!

[Times Roman]

gotta love those curves!

I mean bell curves.... you knew that's what I meant, right?

[RaginCajun]

it's been 30 years... sorry!

you probably used an abacus!

["Maximus"]

you probably used an abacus!

Actually, by using one was how I learned to carry out basic arithmetic operation in elementary school..

["Maximus"]

No need for fancy calculators, until I got to university.. And there's no such thing as division by zero! It simply does not exist; nor is possible..

["Maximus"]

Thanks for you help, man. I'm gonna look things over and see if I can get it now. I'll most likely be back... this shit is whack.

No problem man.. Just let me know if you need more help or clarification on this.. I noticed that I omitted a negative sign on the step below. I wish I could've shown you the hand written solution.

--Simplyfing it a bit further, you get:

d/dx = -(x-2)/(x+1) = 1/-((x+1)(x-2)/(x+1)^2))

[Kawigirl]

you probably used an abacus!

LMAO! Sorry Times...that is funny as hell!!!

[DSM4Life]

I had to take up to calc2 in college. That's when i lost most of my hair.

[number twelve]

lo d hi - hi d low denominator squared we go!