SOLUTION: Please assist I have been working on this for four days now and cannot make any progress. Write 4u/9cd - 2c^3z^2/3ad^2 as a single rational expression

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: Please assist I have been working on this for four days now and cannot make any progress. Write 4u/9cd - 2c^3z^2/3ad^2 as a single rational expression       Log On


   

Question 84867This question is from textbook Elementary and intermediate Algebra
: Please assist I have been working on this for four days now and cannot make any progress.
Write 4u/9cd - 2c^3z^2/3ad^2 as a single rational expression

This question is from textbook Elementary and intermediate Algebra

Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
%284u%29%2F%289cd%29++-+%282c%5E3z%5E2%29%2F%283ad%5E2%29+

The first step is to find the LCD, which is 9acd%5E2.

Multiply the first numerator and denominator by "ad", and the second numerator and denominator by "3c". This brings each denominator up to the common denominator.

%284uad%29%2F%289acd%5E2%29++-+%286c%5E4z%5E2%29%2F%289acd%5E2%29+
%284uad-6c%5E4z%5E2%29%2F%289acd%5E2%29+
The numerator could be factored, but the fraction does not reduce so factoring is not necessary.

If you have trouble with this, please see my own website by clicking on my tutor name "rapaljer" anywhere in algebra.com, and look for "MATH IN LIVING COLOR", "Basic Algebra", "Chapter 3", "Least Common Denominator", and "Adding and Subtracting Fractions."

R^2 at SCC