Radical Expression

Printable View

April 28th 2010, 04:57 PM
evilexe

Radical Expression

Hey guys, I got this problem on my math sheet and I have no idea if I did it right because it's the first time I see something with a division and two multiplications.

http://i41.tinypic.com/263k56f.jpg

Thanks,
EE
April 28th 2010, 05:13 PM
skeeter

$\frac{a}{b} \div \frac{c}{d} \ne \frac{b}{a} \times \frac{c}{d}<br />$

$\frac{a}{b} \div \frac{c}{d} = \frac{a}{b} \times \frac{d}{c}<br />$
April 28th 2010, 05:51 PM
evilexe

That's what I thought after I finished.. Thanks :)
April 28th 2010, 05:53 PM
evilexe

Do I have to flip the last two? Or just the middle one? I am now confused (Thinking)
April 28th 2010, 06:37 PM
skeeter

Quote:

Originally Posted by evilexe

Do I have to flip the last two? Or just the middle one? I am now confused (Thinking)

you only "flip" for division ... just the middle one.
April 29th 2010, 05:46 PM
evilexe

Hey, thanks for the reply. I did that yesterday and I think I got it right.
April 29th 2010, 06:21 PM
shenanigans87

The answer you put is incorrect. It is the reciprocal of that.

[Math]\frac{(2w-3)(2w+3)^2}{6}[/tex]

You can test any simplification or expansion/contraction problem by assigning the variable an arbitrary value, then solve for the original equation and then your result.

All times are GMT -8. The time now is 03:30 AM.