F(×)= 2x+3 dan g(×)=3-5x Tentukan f+g , f-g ,g-f ,dan f×g

(f+g) (x) = f(x) + g(x)
= (2x+3) + (3-5x)
= -3x +6

(f-g) (x) = f(x) – g(x)
= (2x+3) – (3-5x)
= 7x

(g-f) (x) = g(x) – f(x)
= (3-5x) – (2x+3)
= -3x

(f×g) (x) = f(x) × g(x)
= (2x+3) × (3-5x)
= 6x -10x^2 +9 -15x