Consider the following functions. f(x) = x² - 4
g(x) = x-2

What is (f(x))(g(x))?
O (f(x))(g(x)) = x + 2; x = 2

O (f(x))(g(x)) = x + 2; x € all real numbers
O (f(x))(x)) = x3 - 2x2 - 4x + 8; x + 2
O (f(x)/(g(x)) = x3 - 2x2 - 4x + 8; x € all real numbers

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.