Question

What’s the answer???(ONLY ANSWER IF YOU KNOW PLEASE)

Answer 1

Answer:

D

Step-by-step explanation:

Nothing gets rid of the square root signs. That makes a and b incorrect as answers without doing a single calculation. Now the race is on between c and d.

The dot between f and g only means that f(x) and g(x) are multiplied together. There is nothing in that statement that helps us distinguish c and d.

So the two roots are multiplied together f·g(x) = √[(x + 7)(x - 2)]

Expand the two terms between the square brackets and you get

[x^2 + 7x - 2x - 14]. When you combine like terms you get

[x^2 + 5x - 14] or f·g(x) = √(x^2 + 5x - 14]

The answer is D