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Materi : Fungsi Komposisif(x + 1) = 2x² - 4x
f(x) = 2(x - 1)² - 4(x - 1)
f(x) = 2(x² - 2x + 1) - 4x + 4
f(x) = 2x² - 4x + 2 - 4x + 4
f(x) = 2x² - 8x + 6
g(x) = 5x - 13
gof(x) = 5(2x² - 8x + 6) - 13
gof(x) = 10x² - 40x + 30 - 13
gof(x) = 10x² - 40x + 17