2. jika f(x)= 3x+1 maka [f(x)]²-f(x²)-2f(x)=

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a. 8x²+6x-1
b. 8x²+6x-2
c. 6x²+12x-2
d. 6x²-4
e. 6x²-2

2. jika f(x)= 3x+1 maka [f(x)]²-f(x²)-2f(x)=

Jawaban Terkonfirmasi

F(x)=3x+1
misal g(x)=[f(x)]²-f(x²)-2f(x)
g(x)=(9x²+6x+1)-(3x²+1)-2(3x+1)
g(x)=(9x²+6x+1)-(3x²+1)-6x-2
g(x)=6x²-2 (E).