What is the GCF for each set of numbers 9 and 27

Ans: We found the factors and prime factorization of 9 and 27. The biggest common factor number is the GCF number. So the greatest common factor 9 and 27 is 9.

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.