How do you rationalize the denominator and simplify #12/(sqrt5-1)#?
2 Answers
May 28, 2018
Explanation:
Use the identities
#a/a=1# for every non-zero#a# #(a+b)(a-b) = a^2-b^2#
to write
Now, as you can see, the numerator is
The denominator, instead, is written in the same form as the second property written at the beginning:
So, the fraction becomes
May 28, 2018
Explanation:
When having a root on the bottom with an extra