SOLUTION: please help!!!!! simplify if possible or if it cant be simplified write "not possible"
(A.) sqrt(a) + sqrt (b) / sqrt (a) - sqrt (b)
(B.) sqrt(5) +1 / sqrt (5) -1
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Question 92184This question is from textbook
: please help!!!!! simplify if possible or if it cant be simplified write "not possible"
(A.) sqrt(a) + sqrt (b) / sqrt (a) - sqrt (b)
(B.) sqrt(5) +1 / sqrt (5) -1
(A.)____________
(B.)____________
This question is from textbook
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
A.)
It can be simplified by getting rid of the radicals in the denominator
To do this, multiply it by the conjugate of the denominator:
Any expression over itself, is one, so we are not changing anything, right?
:
FOIL
* =
:
combine the middle terms in the numerator, the middle terms in the denominator
cancel, getting rid of the radicals.
:
:
(B.)
Follow the same procedure, multiply by the conjugate of the denominator:
FOIL
* = = =
:
Note that this fraction can be reduced, divide each term by 2 and you have
:
Could you follow this OK? Any questions
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