Which expression represents f(x) – g(x)? f(x) = 2x2 – 3x + 4
g(x) = x2 – 4x – 5

A. x2 – 7x – 1

B. x2 – 7x + 9

C. x2 + x – 1

D. x2 + x + 9

A

Step-by-step explanation:

f(x) – g(x)

Set up the expression.

2x² - 3x + 4 - x² - 4x - 5

Add or subtract the like terms.

2x² - x² -3x - 4x + 4 - 5

x² - 7x -1

no

step-by-step explanation:

2-7=-5

7-2=5

when you combing like terms for ech expression, 5 and -5. these numbers are not equal to each other.