# simplify

• Feb 5th 2010, 11:13 AM
andyboy179
simplify
hi i need to simplify this Attachment 15247 but i don't know how to, can someone explain how to please?!
• Feb 5th 2010, 11:24 AM
felper
$\sqrt{75}=\sqrt{3\cdot25}=5\sqrt{3}$

$\sqrt{27}=\sqrt{3\cdot 9}=3\sqrt{3}$

Then:

$\sqrt{75}+\sqrt{27}=5\sqrt{3}+3\sqrt{3}=8\sqrt{3}$
• Feb 5th 2010, 11:27 AM
e^(i*pi)
Quote:

Originally Posted by felper
$\sqrt{75}=\sqrt{3\cdot25}=5\sqrt{3}$

$\sqrt{27}=\sqrt{3\cdot 9}=3\sqrt{3}$

Then:

$\sqrt{75}+\sqrt{25}=5\sqrt{3}+3\sqrt{3}=8\sqrt{3}$

Interesting typo in your last line (Wink)
• Feb 5th 2010, 11:28 AM
andyboy179
Quote:

Originally Posted by e^(i*pi)
Interesting typo in your last line (Wink)

?
• Feb 5th 2010, 11:31 AM
felper
Quote:

Originally Posted by e^(i*pi)
Interesting typo in your last line (Wink)

Oh, sorry,(Headbang) now it is correct (i think)