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helping with radicals

Mathematics
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Specify?
|dw:1326247869818:dw|
4sqrt.5

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Other answers:

hey pokemon, try it yourself, thats how you will learnn , i will guide you
The whole point of this website actually...
u trying it man?
ok
|dw:1326248463156:dw|
hey i am here
ok
so far correct?
ok hello again pokemon
hello?
no check your \[1/2 \times \sqrt 20\]
what is \[\sqrt 20 = \sqrt {4 \times 5}\]
now you know\[\sqrt 4 =2\]
so \[\sqrt 20 = 2 \times \sqrt 5\]
hey akshay is helping u out. He is good
but you want \[1/2 \sqrt 20 = \sqrt 5\]
you fine till here man?
Hey samlam thanks hehe
so lost?
ok what is that you don't get?
so the square root of 20 is the product of 5*4
square root of 20 is square root of 4*5
|dw:1326249125280:dw|
|dw:1326249164510:dw| did u get that?
you fine with this.?
\[\sqrt ab = \sqrt a \times \sqrt b\]
yes i got that
now
ok now do the next one
\[\sqrt 45\]
go step by step
|dw:1326249246307:dw|
no
why are they two roots?
*square roots
\[\sqrt 45 = \sqrt 9 \times \sqrt 5\]
is that what you mean?
yes
ok go ahead :D
|dw:1326249569591:dw|
how is it going pokeman?
Go ahead yea. solve the whole thing now
its going great i supposed
YAHOO :DDDDDDDDDDDDD
ok pokemon i am still here :D go ahead
bye pokeman gonna go study see u around
ok
|dw:1326250193101:dw|
ok it is something like this \[1/2 \sqrt 20 + \sqrt 45\] =\[\sqrt 5 + 3 \sqrt 5\] =\[4 \sqrt 5\]
what happen to the 1/2?
akshay u r awesome xD
how did you get |dw:1326250676815:dw|
ok it is \[1/2 \sqrt 20 \] Now you have \[\sqrt 20 = 2 \sqrt 5\] so that multiplied by 1/2 gives you \[\sqrt 5\]
and for \[\sqrt 45 = 3 \sqrt 5\]
LOL samlan , i am not awesome ..
ohhh don't blush try to accept the compliment
thanks hehe :D
doesn't |dw:1326250913607:dw|
yes that is what i got.. \[4 \sqrt 5\]
i got more questions willing to help me
i heard hero got married LOL
seriously?
Anytime pokemon i told you i never tell no to questions, but its kinda late here, i got some 15 minutes
i dont to kaka LOL
??
u kidding?
kaka?
there was a party on twiddla
i missed out :(
ok thanks
|dw:1326251216009:dw|
oh u gotta first do foil Arrrrrgggghhhh
call hero to help u
|dw:1326251317018:dw|
isn't hero busy?
let me ask him
I don't want to bother him
ok go step by step, open the brackets
do we need to used foil?
(a+b)(c+d)= ac + ad + bc + bd
ok thanks
so use that in the thing above
|dw:1326251886970:dw|
yes
so when we multiply the answer is 3*7=|dw:1326251983779:dw|
ok it is \[3 \times \sqrt 7 = 3 \sqrt 7\]
neither of the above u wrote is correct
|dw:1326252144798:dw|
perfect
thats it?
|dw:1326252489033:dw|
oh no you have to ADD them
|dw:1326252535016:dw|
sorry pokemon my eyes are dropping.. i got work tomorrow early.. i will be back tomorrow evening.. till that time you can take somewlse's help, i will help you tomorrow, sorry again
u here?
ok
no problem
have a great day ahead! and meet you tomorrow.. we need to work a bit faster from now ok?
yes
am I correct?
1/2 \sqrt 20 = \sqrt 5
for the|dw:1326254978405:dw|
my answer is |dw:1326255046497:dw|
yes
yipeeeeeeeeeeeeeeeeeeee
rationalize the denominator and simplify the resulting fraction.
|dw:1326255280427:dw|
for this question mrs.math
|dw:1326255332662:dw|
yes that is correct
would the answer be 1
my mistake 7

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