Factor Each expression. If it cannot be factored write “Prime” Question 1. 4x-16

Question 2. 18k+42

Idon’t exactly understand but i think dbc=rst

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.

8.4 10.4 8.9 10.9 have a good day