Question

Help me what is the answer ?

Answer 1

The correct answer is option A. 30

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

Answer 2

Correct choce is (a). 30.

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.