Monday

December 22, 2014

December 22, 2014

Posted by **Jahnay** on Monday, January 9, 2012 at 5:51pm.

radical of 3 times radical of three= radical of 9?

radical of 2x times radical of 2x= radical of 4x^2?

radical of 14 times radical of 2= radical of 28?

- Algebra 1 -
**Damon**, Monday, January 9, 2012 at 6:05pmyes

- Algebra 1 -
**Reiny**, Monday, January 9, 2012 at 6:05pm1st: but what is √9 ?

2nd: √(2x) √(2x) = √(4x^2) = 2x

generally: √a√a = a

3rd: √14 √2

= √28

= √4√7

= 2√7

- Algebra 1 -
**Jahnay**, Monday, January 9, 2012 at 6:08pmoh ok so i have to simplify everything for it to be correct right?

- Algebra 1 -
**Jahnay**, Monday, January 9, 2012 at 6:09pmexcept i don't understand your second point. I'm lost right there.

- Algebra 1 -
**Reiny**, Monday, January 9, 2012 at 6:14pmyes, you were not finished

for my 2nd:

The square root of a number times itself gives you the number itself

e.g.

(√5)(√5) = √25 = 5

√23(√23) = √529 = 23

√a(√a) = a

- Algebra 1 -
**Henry**, Monday, January 9, 2012 at 6:20pmpost it.

- Algebra 1 -
**Jahnay**, Monday, January 9, 2012 at 6:20pmoh ok i get it now i think i understand. so what if there is a little number inside the little v shape it makes

- Algebra 1 -
**Jahnay**, Monday, January 9, 2012 at 6:22pmi cant make the radical sign. i don't know how

- Algebra 1 -
**Reiny**, Monday, January 9, 2012 at 6:24pmThe √ symbol means square root

If you see a little 3 inside the √ , like ∛ , then it means cube root

if you see a little 4 inside the √ , like ∜ , then it means fourth root

etc.

- Algebra 1 -
**Reiny**, Monday, January 9, 2012 at 6:26pmI am making these symbols on a Mac

I don't know how to make them on my PC, that is why most of my answers on this website are done on my Mac.

- Algebra 1 -
**Jahnay**, Monday, January 9, 2012 at 6:26pmok thank you

- Algebra 1 -
**Steve**, Tuesday, January 10, 2012 at 12:06amWhat I have done on my PC is copy and paste useful characters I have seen in other posts. I keep them in a file for later use.

I tried inserting some cool symbols I found elsewhere on the web, and a student complained they came out as little boxes. That's due to a font incompatibility. Nowadays I stick to symbols I see in Jiskha posts.

**Answer this Question**

**Related Questions**

math,correction - Simplify by combining like terms. Problem #32 radical (63) - 2...

math , help,algebra - i am up to this point in my problem but i don't know what ...

math,correction - Can somoene helpme plz... Simplify radical 7 * radical 14 ...

Algebra - I'm adding 2(radical 50) + 12 (radical 8). I began by breaking the ...

math - in the question 6radical x +3 radical y -2radical y +3 radical x -radical...

Math - Symplify (radical x/8) is the answer x (radical 2)/4 i put it to be (x/2...

algebra - 3 radical x - 4 radical y divided by 3 radical x - 2 radical y = ( i ...

trigonometry - Simplify and write in standard form. 1.) (radical 3 + i radical ...

math - the expression 6 times radical 20 divided by 3 times radical 5 is ...

math,correction plz - can someone correct my math...thanks... Perform the ...