What are the factors of 17, 18, 32, 42, 23, 70 ? what are the factors of 17, 18, 32, 42, 23, 70 ?

17-1, 17
18-1, 2, 3, 6, 9, 18
23-1, 23
32-1, 2, 4, 8, 16, 32
42-1, 2, 3, 6, 7, 14, 21, 42
70-1, 2, 5, 7, 10, 14, 35, 70
Hope this helps.

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.