Diketahui f (x) = x^2+x+1 dan g(x)= 2x-3.Fungsi komposisi (f•g) (x) adalah....
(f•g) (x)
= (f(g(x))
= (f(2x-3))
=(2x-3)^2+ (2x-3) +1
= 4x^2-12x+9+2x-3+1
= 4x^2-10x+6-1
= 4x^2-10x+5
C. 4x^2-10x+5
Diketahui f (x) = x^2+x+1 dan g(x)= 2x-3.Fungsi komposisi (f•g) (x) adalah....
(f•g) (x)
= (f(g(x))
= (f(2x-3))
=(2x-3)^2+ (2x-3) +1
= 4x^2-12x+9+2x-3+1
= 4x^2-10x+6-1
= 4x^2-10x+5
C. 4x^2-10x+5
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