Question
Bahasa Melayu
Diberi $g(x) = 2x + 1$ dan $fg(x) = 4x^2 + 4x - 2$, cari $f(x)$.
English
Given $g(x) = 2x + 1$ and $fg(x) = 4x^2 + 4x - 2$, find $f(x)$.
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