Sunday
April 20, 2014

Homework Help: Dividing Rational Expressions

Posted by Jaz on Saturday, November 21, 2009 at 8:42pm.

x^3-8/x^2-4 divided by (x^2+2x+4)/(x^3+8). This becomes ((x-2)(x^2+2x+4)/(x+2)(x-2) times ((x+2)(x^2-2x+4))/(x^2+2x+4). I understand that (x-2)(x^2+2x+4)=(x^3-8) when I distribute it, however, if I didn't have the help of my book, I'd have no clue how to come up with this on my own. Is there a general rule for how to distribute x's to the third power? Thank you!!

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Rational Expression - (x+1/2x-1 - x-1/2x+1) * (2x-1/x - 2x-1/x^2) (x+1/2x-1 - x-...
Algebra - I multiplyed x^2-2x+2 times x^2+2x+2. The book suggested the order ...
TO KIM - can you help me with this |2x - 3|^2 - 6|2x - 3| + 5=0 I know you are ...
Math33333 - Please help me! Problem: x+2 x-3 _________ - _________ 2x^2+5x+2 2x^...
math - how many times does the graph of y= 2x squared -2x+3 intersect the x-axis...
Algebra - Need help with this problem, 2x+y=6 solve for y 2x+y=6 subtract 2x ...
math/algebra - divide: x^2 + 2x -15/4x^2 divided by x^2-25/2x-10 answer choices ...
Math - Null factor law and factoriising: 2x^2+7x=0 X(2x+7)=0 X=0 or 2x+7=0. ( ...
algebra - Division Polynomials 2x square + 4 /2x 2x^2 + 4/(2x) = 2 (x^2 + 1/x) ...
algebra - I need to know if I am doing this problem right when sustitution ...

Search
Members