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g(x)= 2x /x-3
fog (x) = f(g(x))
=3x²-2
=3(2x/x-3)²-2
=3(4x²/x²-6x+9)-2
= 12x²/x²-6x+9 -2
= 12x²-2x²+12x-18/x²-6x+9
= 10x²+12x-18/x²-6x+9
fog(2) = 10(2)²+12(2)-18/2²-6(2)+9
=40 +24-18/-8+9
=46/1
= 46
jadi jawabannya E (46)
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