Question

Question 13

Two functions are shown.
f(x) = 2:3 - 4x + 2
g(x) = (x – 2)
Which expression is equal to f(x) = g(x)?
A
22
2
B
3
8x - 2
c

2
8x + 6
D
8x + 6

Answer 1

See Explanation

Explanation:

Details are not clear. So, I will use the following

`f(x) = x^3 - 4x + 2`

`g(x) = x - 2`

Required

Find f(x) - g(x)

This is calculated as:

`f(x) - g(x) = x^3 - 4x + 2 - (x - 2)`

Open bracket

`f(x) - g(x) = x^3 - 4x + 2 - x + 2`

Collect like terms

`f(x) - g(x) = x^3 - 4x - x + 2 + 2`

`f(x) - g(x) = x^3 - 5x + 4`