kk saya mintak tolong Jika f(x)=x² dan (f ° g)(x) = x²-2x+1 maka g(3) ........ Jika f(x) = 7x-2 maka f–¹(x+1)...... Jika f(x) = x+2 dan g(x)=3x²+4x+1 maka (g °

f(x) = x^2
f(x-1) = (x-1)^2 = x^2-2x+1 = f(g(x))
g(x) = x -1
g(3) = 3-1=2

y=7x-2
7x=y+2
x=(y+2)/7
f–¹(x) = (x+2)/7
f–¹(x+1)=(x+3)/7

g(f(x)) = 3(x+2)^2 +4(x+2)+1
=3(x^2+4x+4)+4x+8+1
=3x^2 +12x+12+4x+9
=3x^2+16x+21