help with algebra problem

[mchel210]

I know this is a simple problem...but my husband is telling me I am doing it all wrong.

 

These are exponents...and I will do my best to write it out....The small number is the exponent. (I cant figure out how to type it high...so it is low...sorry.) It also wont leave spaces...so they are fractions split..the second fraction is - 6 xy divided by -x ...I will write it both ways..

 

 

 

20x3y . -6xy

------- ------ =

4xy2 -x

 

or

 

 

 

 

20x3y

-------

4xy2

 

* (times)

 

 

-6xy

------

-x

 

 

I come out with 30x2

 

Is that wrong?

[kiana]

You have the right answer. I don't know what he's telling you you're doing wrong -- pasting that may help.

 

FWIW, it's easier to display math equations by using x^2 = x-squared, etc. That'd solve your problem with being unable to get superscripts.

[Jann in TX]

Here is the problem worked using 2 different methods.

#1 I reduced each fraction then multiplied

 

#2 I multiplied then reduced...

 

What was the answer you were supposed to be getting?

[C_l_e_0..Q_c]

I'm also getting 30 x^2

 

So assuming your way of writing the equation on this board does represent what's requested in the book, you are right.

[jeri]

Very cool with the white board!

 

Jeri

 

PS. I'm withthe above post-ers. Your answer is right!

[Jann in TX]

I've been teaching/tutoring online for years... I've learned to cope...

 

To get my problem to show here I 'wrote' it using MS Paint and saved it as a jpeg file. I used my photo editing program to crop it. I downloaded it to shutterfly.com and brought up the picture. I right clicked properties and copied the URL number (it is LONG)--then pasted into the 'insert image' form here.

 

To e-mail a worked problem to a student I can do a similar trick. After I work the problem I copy it into MS Word then copy it into my e-mail. It will NOT copy from MS Paint into an e-mail. This way the student sees the problem without having to open an attachment. (Make sure e-mail is set on HTML).

 

I LOVE my graphics tablet... I use an online whiteboard interface when I do my online classes.. and writing the the graphics tablet's pen is MUCH easier than trying to use a regular mouse or keyboard.

Edited April 5, 2010 by Jann in TX

[C_l_e_0..Q_c]

I LOVE my graphics tablet... I use an online whiteboard interface when I do my online classes.. and writing the the graphics tablet's pen is MUCH easier than trying to use a regular mouse or keyboard.

 

Best use of a graphics tablet I've seen in a long time!

[mchel210]

yes...that is very cool! Thanks. I am glad I am right! My hubby is always joking that he is better at math. Guess homeschooling is doing well for me! LOl. :)

[Grace is Sufficient]

yes...that is very cool! Thanks. I am glad I am right! My hubby is always joking that he is better at math. Guess homeschooling is doing well for me! LOl. :)

 

Sometimes I try it when people post questions like this, because Algebra is as much of a bugaboo of my homeschool life as it was when I was in high school... But I got it right!

:party:

Debbie