Sunday
April 20, 2014

Homework Help: BobPursley3...another one..

Posted by Margie on Sunday, March 4, 2007 at 4:02pm.

Problem 3:
4x/(x+2) - 8/(x-1)
What I did:
Common denominator is: (x+2)(x-1)

4x(x-1)/(x+2)(x-1) - 8(x+2)/(x+2)(x-1)
[4x(x-1) - 8(x+2)]/(x+2)(x-1)



multiply the numerator out.
4x^2 -4x -8x-16
4x^2-12x-16 factor 4 out
4(x^2-3x-4)
factor
4(x-4)(x+1)
and that will reduce over the denominator.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Simplifying Rational Expressions - Can someone PLEASE solve these for me 1.4x-12...
Simplifying Rational Expressions - Can someone slove these for me 1.(4x-12)/4x 2...
bobpursley,math - about this problem , I figured it out and i did get the answer...
Math - For Reiny:What step did I do wrong.(Help) (x-4x^3)^2 =(x-4x^3)(x-4x^3)=(x...
Math2(Please Help) - 4x 8 ___ - ______ x+2 x-1 *Simplify The Expression I'm ...
Pre-Calculus - How do you factor this completly 7x*(4x-5)^3+(4x-5)^4 I am ...
math - 4 [(4x^2 + 4x)]^2 + 4(4x^2 + 4x) I got up to: 16 ( 4x^4 + 8x^3 + 5x^2 + x...
math - how do i do x2+12x+32 x2+12x = 14x+32 subtract 14x from each side 14x=32 ...
Simplifying Rational Expressions - 1. 4x-12/4x 2. d+7/d^2-49 3.t2-25/t^2+t20 4....
Simplifying Rational Expressions - 1.4x12 / 4x 2.d+7 / d^2-49 3.t^2-25 / t^2+t-...

Search
Members