Tolong jawap ini ka ​

f(x) = 2x² – 4x

g(x) = x – 2

a) (f+g) (x)

= f(x) + g(x)

= 2x² – 4x + (x – 2)

= 2x² – 4x + x – 2

= 2x²- 3x – 2

b) (f – g) (x)

= f(x) – g(x)

= 2x² – 4x – ( x – 2)

= 2x² – 4x – x + 2

= 2x² – 5x + 2