SOLUTION: I need help simplifying rational expressions the question is x^3-x^2-12x over x^3-9x

Question 307764: I need help simplifying rational expressions the question is x^3-x^2-12x over x^3-9x
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!

First, factor out the x:

Now finish factoring the numerator and denominator completely:

Divide out the factors x and (x+3):

I have quite additional explanation with examples solved in LIVING COLOR on my own website. Please go to "www2.seminolestate.edu/rrapalje". Look for the links on my Homepage "Basic, Intermediate, and College Algebra: One Step at a Time" and also "MATH IN LIVING COLOR", and look under "Basic Algebra" (Chapter 3) or "Intermediate Algebra"(Chapter 2).

I also have a video from my own teaching in class before I retired a few years ago in Intermediate Algebra. Parts of this video would also be helpful to students in lower levels of math. To see the video, look for "Rapalje Videos in Living Color", and see Intermediate Algebra for the topic of Fractions.

I think you will find the explanations, both written and video, much easier to understand than traditional textbooks. Best of all, it's all FREE--even the VIDEO!!

Dr. Robert J. Rapalje, Retired
Seminole State College of Florida
Altamonte Springs Campus

RELATED QUESTIONS
I need help with simplifying rational expressions and the question is X^3-X^2-12X over... (answered by rapaljer)

I need help with simplifying rational expressions the questions is w^3-w over... (answered by mananth)

I need help simplifying this rational equation: (x-2)(x+5)(over)4(x+3)(x-2) /... (answered by checkley77)

i need help with simplifying rational expressions the question is... (answered by edjones)

I need help simplifying this rational expression: x+4(over)2x^2 +... (answered by checkley77)

Okay. So my name is glen and I need help with stating the excluded values and simplifying (answered by ewatrrr)

Hello, I need help with simplifying this rational expression: x^2-100 over... (answered by drj,stanbon)

I need help with the problem x^3+5x^2/2x^2+9x-5. I have to express the following rational (answered by vleith)

Multiplying rational expressions, please help me simplify the expression: 5x+15 over 3x... (answered by stanbon)