Question

i do not fully know how to multiply square roots and exponents. would some one like to explain how this would be distributed ?

( -2k +4√(5k^2) ) * 4√(5k^2)

Answer 1

( -2k +4√(5k^2) ) * 4√(5k^2) is as nice as i can get it to look :)

Answer 2

what is funny ?

Answer 3

thanks or the medal :)

Answer 4

i know part of it would work out to be 16*5k^2.
it is the -2k * 4√(5k^2) i at a loss with

Answer 5

ok. this did not work out then. this came from another question about simplifying . the answer posted was meant to remove the radical from the denominator. the poster of the answer explained that they did not distribute the denominator . this was my attempt at that task . perhaps you have a more clear explanation of how this type of simplification works. here is the original:

how does this:

-3 +5√(2k)
-------------------
-2k +4√(5k^2)

simplify to this:

-3 -6√(5) +5√(2k) +10√(10k)
-------------------------------------
38k

and here is the original posted question:

http://openstudy.com/users/ibew#/updates/5161af6fe4b0c2e4606fe410


thanks :)

Answer 6

@Luis_Rivera

Answer 7

i will re post the orgiganl question

Answer 8

original