f(×)=×2+3×-7 dab g(×)=2×-5 komposisi fungsi (fog)(×)
Matematika
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Pertanyaan
f(×)=×2+3×-7 dab g(×)=2×-5 komposisi fungsi (fog)(×)
1 Jawaban
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1. Jawaban bayusadewo
(fog)(x) = f g(x) = f (2x-5) = (2x-5)^2+3(2x-5)-7 = 4x^2-20x+25+6x-15-7
= 4x^2-14x+3