Penjelasan dengan langkah-langkah:
(gof)(x)=3x²-3x+2
g(f(x))=3x²-3x+2
g(x-1)=3x²-3x+2
g(x)=3(x-1)²-3(x-1)+2
=3(x-1)(x-1)-3x-3+2
=3(x²-x-x+1)-3x-1
=3x²-3x-3x+3-3x-1
=3x²-9x+2
jadi g(x)=3x²-9x+2
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Penjelasan dengan langkah-langkah:
(gof)(x)=3x²-3x+2
g(f(x))=3x²-3x+2
g(x-1)=3x²-3x+2
g(x)=3(x-1)²-3(x-1)+2
=3(x-1)(x-1)-3x-3+2
=3(x²-x-x+1)-3x-1
=3x²-3x-3x+3-3x-1
=3x²-9x+2
jadi g(x)=3x²-9x+2