f(x)=x+1 maka f(x)²-2f(x)=
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f(x)=x+1 maka f(x)²-2f(x)=
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1. Jawaban kembangapi
F(x)=x+1
f(x)²-2f(x)
=(x+1)²-2(x+1)
=x²+2x+1-2x-2
=x²-1