Dik f(x)=2x-1Dan g(x)=5x-x2 Tentukan: A.fog(x) B.gof(x) D.gof(2)

f(g(x)) =5(2x-1)-(2x-1)2
10x-5-4x2+3x+1
13x-4x2-4

g(f(x)) =2(5x-x2)-1
10x - 2x2 - 1

g(f(x)) = 2(5x - x2)-1
10x - 2x2 - 1
10(2) - 2(2)2 -1
20 - 8 - 1
11