Comment on the posts on the math blog about the error
Prepare a thing plastic red file for filing .
Rules of index
Thanks to Justin
In order to rid the denominator of the surd/square root , we rationalize it .
Rationalizing is the process whereby we multiply the denominator by another fraction with the numerator and denominator like it . We make use of the identities such as : (a+b)^2 = a^2 + 2ab + b^2 ,
(a-b)^2 = a^2-2ab+b^2 or (a+b)(a-b) = a^2-b^2
Recall : Prime factorization
It is a way of breaking down a compound number into prime factors