fungsi f(x) = x^2 - 3x -4 dan g(x) 2x+3 maka (fog)= ....?
Matematika
madepitri02
Pertanyaan
fungsi f(x) = x^2 - 3x -4 dan g(x) 2x+3 maka (fog)= ....?
1 Jawaban
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1. Jawaban sigitbudikurnip4v1jp
f(x) = x^2 - 3x -4
g(x) 2x+3
(fog)
= f(g(x))
= f(2x + 3)
= (2x + 3)^2 - 3(2x + 3) - 4
= (4x^2 + 12x + 9) - 6x - 9 - 4
= 4x^2 + 6x - 4