dik:f(x)=2x+1 g(x)=x+3 tentukan: a. f(x)+g(x) b. f(x)-g(x) c. f(x).g(x)

Langsung aja y

A.
= f(x) + g(x)
= (2x + 1) + (x + 3)
= 3x + 4

B.
= f(x) - g(x)
= (2x + 1) - (x + 3)
= x - 2

C.
= f(x) × g(x)
= (2x + 1) × (x - 2)
= 2x² - 4x + x - 2
= 2x² - 3x - 2

Semoga berguna +_+