# roots

• Nov 11th 2007, 04:09 PM
leno182
roots

6 square root of 7 times 3 square root of 5

square root of M square root of M squared

suare root of M squared over N cubed

3 square root of 2 + the square root of 50

(suare root of 2-3) (sguare root of 2+3

(suare root of 3 - square root of 5) (square root of 3 - square root of 5)

square root of x

to the 4th square root of 2

cubed square root of x squared y cubed

• Nov 11th 2007, 04:13 PM
galactus
I am now giving the Nelson Muntz 'ha (Evilgrin)ha'
• Nov 11th 2007, 04:17 PM
leno182
what u mean?
• Nov 11th 2007, 04:28 PM
Jhevon
Quote:

Originally Posted by leno182

what exactly are you supposed to do with these? write them in math symbols?
• Nov 11th 2007, 04:34 PM
leno182
solve the problems
i need help hurry im runing out of time i just need to solve them!!
• Nov 11th 2007, 04:35 PM
Jhevon
Quote:

Originally Posted by leno182
i need help hurry im runing out of time i just need to solve them!!

there is nothing to solve. there are no equations here. what are your instructions?
• Nov 11th 2007, 04:48 PM
Jhevon

this is what you have. i'll assume you want to simplify
Quote:

Originally Posted by leno182

6 square root of 7 times 3 square root of 5

$6 \sqrt{7} \cdot 3 \sqrt{5} = 18 \sqrt{7}\sqrt{5} = 18 \sqrt{35}$

Quote:

square root of M square root of M squared
$\sqrt{M} ( \sqrt{M})^2 = M^{1/2}M = M^{3/2} = \sqrt{M^3}$

Quote:

suare root of M squared over N cubed
$\frac {(\sqrt{M})^2}{N^3} = \frac M{N^3}$
• Nov 11th 2007, 04:55 PM
Jhevon
Quote:

Originally Posted by leno182
3 square root of 2 + the square root of 50

$3 \sqrt{2} + \sqrt{50} = 3 \sqrt{2} + \sqrt{25 \cdot 2} = 3 \sqrt{2} + \sqrt{25}\sqrt{2} = 3 \sqrt{2} + 5 \sqrt{2} = 8 \sqrt{2}$

Quote:

(suare root of 2-3) (sguare root of 2+3
this is the difference of two squares $(\sqrt{2} - 3)(\sqrt{2} + 3) = 2 - 9 = -7$

Quote:

(suare root of 3 - square root of 5) (square root of 3 - square root of 5)
i hope you didn't mix up the signs here

$(\sqrt{3} - \sqrt{5})(\sqrt{3} - \sqrt{5}) = (\sqrt{3} - \sqrt{5})^2 = 3 - 2\sqrt{15} + 5 = 8 - 2 \sqrt{15}$

Quote:

square root of x
what is it you want here?!

$\sqrt{x} = x^{\frac 12}$ ??

Quote:

to the 4th square root of 2
again, where's the instruction?

$\sqrt[4]{2} = 2^{\frac 14}$

Quote:

cubed square root of x squared y cubed
i don't know what you mean here
• Nov 11th 2007, 04:56 PM
leno182
yes exsacly thank u can u help me with all the other ones?
help me solve the others just like that
• Nov 11th 2007, 04:58 PM
Jhevon
Quote:

Originally Posted by leno182
help me solve the others just like that

what others? i did everything except the last one because what you wrote makes no sense. and for the two before that, i have no idea what you want. tell me what were the instructions with the problems
• Nov 11th 2007, 05:03 PM
leno182
last 3
write each of the following in exponential form
• Nov 11th 2007, 05:04 PM
Jhevon
Quote:

Originally Posted by leno182
write each of the following in exponential form

was that so hard?

that's what i did for the first two of the last three, but for the last, i do not know what you mean. try restating the question to clarify
• Nov 11th 2007, 05:06 PM
leno182
theres a little three before the square root sign then x squared y cubed
• Nov 11th 2007, 05:07 PM
Jhevon
Quote:

Originally Posted by leno182
theres a little three before the square root sign then x squared y cubed

is the square root sign over both the x^2 and the y^3 ??

respond quickly, i'm leaving in a minute
• Nov 11th 2007, 05:10 PM
leno182
yes
exsacly
i have 4 more problems can u help me with them real quick