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Why does it not times the 2 (the radicand) as well?

Since it was in the parenthesis shouldn't it be multiplied too?

or do you not times the radicand when finding the perimeter of a rectangle?

2(√128+√200)=2(8√2+10√2)=2(18√2)=36√2
or 36√4?

sorry my computer is being slow

I just need to know if you times the radicand?

Well, wouldn't you ask that in the other question ask the person who posted it?

you have
\[2\times18 \sqrt {2}\]
you'll just multiply it by 18
\[36\sqrt 2\]

It was posted a while ago... and I did

@EvonHowell it's ok to ask as a new post. It's related to maths

so in 2(18√2) you would only times the 18 by 2?

@that1chick If you have
\[2\sqrt 2\]
then it's two times the radicand

yes, if you have
\[2\times (4\times 6)\]
Would you multiply it to both 4 and 6?

Cool :)

@that1chick do you get my point?

Ok I get it... they shouldnt have put it in parenthesis. Thank you

Good :) welcome