sqrt 7 ( sqrt 14 + sqrt 3 )

Question

tkhunny · Answer

What is to be done?

anonymous · Answer

sqrt 7 * sqrt 14 + sqrt 7 * sqrt 3
     sqrt 98  + sqrt 21
7 sqrt 2 + sqrt 21

tkhunny · Answer

Just one thing, Why on Earth would you want to see $\sqrt{98}$?  Keep things simpler!

$\sqrt{7}\cdot(\sqrt{14} + \sqrt{3}) = \sqrt{7}\cdot(\sqrt{7}\sqrt{2} + \sqrt{3}) = 7\sqrt{2} + \sqrt{21}$

No crazy numbers.

anonymous · Answer

Thank you I see what I was doing wrong

tkhunny · Answer

Well, it definitely wasn't "wrong".  It was more of a style difference.  Unique answers don't care how you find them.  I just tend to think that we should not try to do things harder when they could be easier.

anonymous · Answer

I have one more question how do you get the sqrt symbol. I tried the equation box at the end of the post but it writes out sqrt.

tkhunny · Answer

I usually just type things myself.

"The square root of seven" requires this (without the spaces or quotes)

"\ ( \ s q r t { 7 } \ )"

anonymous · Answer

$\sqrt{7}$ cool thank you

tkhunny · Answer

You can also right-click the math text, select "Show Math As" and pick "Tex Commands" to see the hiding coding secrets.