Question

Help me what is the answer ?

Answer 1

Answer:

Correct choce is (a). 30.

Step-by-step explanation:

Given equation is $f(x)=x^2-x$.

Now we need to find the value of (fof)(3). Then select correct matching choice from the given choices. Where given choices are:

(a). 30

(a). 33

(a). 6

(a). -6

Now let's find  $(fof)(3)$

$(fof)(3)=f(f(3))$

$(fof)(3)=f(3^2-3)$

$(fof)(3)=f(9-3)$

$(fof)(3)=f(6)$

$(fof)(3)=6^2-6$

$(fof)(3)=36-6$

$(fof)(3)=30$

Hence correct choce is (a). 30.

Answer 2

Answer:

The correct answer is option A.  30

Step-by-step explanation:

It is given that

f(x) = x² - x

To find f o f(3)

F(x) = x² - x

f(3) = 3² - 3

     = 9 - 3  6

f o f(3) = f(6)

f(6) = 6² - 6

      = 36 - 6 = 30

Therefore the correct answer is f o f(3) = 30

The correct option is Option a.  30