Is 32,643 divisible by both 3 and 9?

32,643/3=10,881      YES IT IS DIVISIBLE
32,643/9=3,627        YES IT IS DIVISIBLE

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.