12. Ali factored the above problem, and got 2x(10y + 5). When she checked it using the distributive property, she got the original problem! Since her check
worked, she thinks she has the correct answer. How can that be? Explain her
mistake. *

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.

Her the answer is the answer will be c