Penjelasan dengan langkah-langkah:
(f • g)(x) = f(g(x))
= f(3x² + 7x - 8)
= 4(3x² + 7x - 8) - 9
= 12x² + 28x - 32 - 9
= 12x² + 28x - 41
(f • g)(2) = 12·2² + 28·2 - 41
= 12·4 + 28·2 - 41
= 48 + 56 - 41
= 63
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Penjelasan dengan langkah-langkah:
(f • g)(x) = f(g(x))
= f(3x² + 7x - 8)
= 4(3x² + 7x - 8) - 9
= 12x² + 28x - 32 - 9
= 12x² + 28x - 41
(f • g)(2) = 12·2² + 28·2 - 41
= 12·4 + 28·2 - 41
= 48 + 56 - 41
= 63