Diketahui (fog)(x)=x^2+4.jika g(x)=x-1 f(x)... A.x²+3 B.x²+5 C.x²-2x+5 D.x²+2x+4 E.x²+2x+5 Mohon bantuannya

jawab

g(x)=  x - 1

fog(x)= x² + 4
f {g(x)} = x² + 4
f(x -1) = x² + 4
f(x) = (x +1)² + 4
f(x)= x² + 2x + 1 + 4
f(x)= x² +2x + 5 

bab : Fungsi

GX = x - 1
f (g(x)) = x^2 + 4
f (x) = ( x + 1 )^2 + 4
f (x) = x^2 + 2x + 1 + 4
f (x) = x^2 + 2x + 5