Given that ƒ(x) = 3x – 1 and g(x) = 4x2 – 5x + 7, find (ƒ – g)(x)

The answer is - 4x² + 8x - 8

Step-by-step explanation:

ƒ(x) = 3x – 1

g(x) = 4x2 – 5x + 7

(ƒ – g)(x) = 3x - 1 - ( 4x² - 5x + 7)

That's

3x - 1 - 4x² + 5x - 7

Group like terms

- 4x² + 3x + 5x - 1 - 7

The final answer is

- 4x² + 8x - 8

Hope this helps you.

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.