jika f(x) = x²- 2x -5 dan g(x) = 2x-1 maka (f0g) (x)
Matematika
sam192
Pertanyaan
jika f(x) = x²- 2x -5 dan g(x) = 2x-1 maka (f0g) (x)
2 Jawaban
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1. Jawaban faris94math
4x^2 - 4x-4x + 2-5+1
4x^2 - 8x - 2 -
2. Jawaban naadiya1
(fog) (x)= f(g(x))
= (2x-1)²-2(2x-1)-5
= (2x-1)(2x-1) -4x-2-5
= 4x²-2x-2x+1-4x-2-5
= 4x²+6x+1-2-5
=4x²+6x-6