minta tolong bantu nomer 12 sama cara, makasih :)

f (g(x)) = f( x+2 )
=2(x +2)² -3(x+2) +4
=2(x²+4x+4) -3x -6 +4
=2x² +8x +8 -3x -6 +4
=2x² +5x + 6