Dropped down the rational expression to lowest terms, Mathematics

Carry out the indicated operation and dropped down the answer to lowest terms.

 (x2 - 5x -14/ x2-3x+2) .   (x2 - 4)/x2-14x+49)

Solution

This is a multiplication.  The first thing that we have to always do in the multiplication is to factor everything into sight as much as possible.

 (x2 - 5x -14/ x2-3x+2) .   (x2 - 4)/x2-14x+49)=((x-7)(x+2)/(x-2)(x-1)).((x-2)(x+2)/(x-7)2)

Now, recall that we can cancel out things across a multiplication like this.

1555_Dropped down the rational expression to lowest terms.png

Note that it only works for multiplication and NOT for division!

In this case we do have multiplication hence cancel as much as we can and then do the multiplication to acquire the answer.

 (x2 - 5x -14/ x2-3x+2) .   (x2 - 4)/x2-14x+49)= (x+2) /( (x-1). (x+2) (x-7) = (x+2)2 /(x-1). (x-7)

Posted Date: 4/6/2013 3:12:14 AM | Location : United States







Related Discussions:- Dropped down the rational expression to lowest terms, Assignment Help, Ask Question on Dropped down the rational expression to lowest terms, Get Answer, Expert's Help, Dropped down the rational expression to lowest terms Discussions

Write discussion on Dropped down the rational expression to lowest terms
Your posts are moderated
Related Questions
students dont retain the topic, hoe to make it easier?

Christie purchased a scarf marked $15.50 and gloves marked $5.50. Both items were on sale for 20% off the marked price. Christie paid 5% sales tax on her purchase. How much did she

Equations of Planes Earlier we saw a couple of equations of planes.  Though, none of those equations had three variables in them and were actually extensions of graphs which we

we have to find the perimeter when 1 rib is 7 cm and another rib is 5 cm

Q. Find a common factor of the numerator and denominator? Ans. There's only one key step to simplifying (or reducing) fractions: find a common factor of the numerator and

assignment of mathematics in b.sc. 1sem

For the given function recognize the intervals where the function is increasing and decreasing and the intervals where the function is concave up & concave down. Utilizes this info


Q. Define Degrees and Radians? Ans. Just as your height can be measured in meters or feet and your weight can be measured in pounds or kilograms, angles can be measured in

what is the difference between North America''s part of the total population and Africa''s part