Question

Jika diketahui f(x)= x-3 dan (g o f)(x)= 2x²-9x+8, maka g(x)=...

Answer 1

Caranya g(f(x)) = g o f (x) jd
g (x - 3) = 2x^2 - 9x + 8
g (x) = 2(x + 3)^2 - 9(x+ 3) + 8
g (x) = 2(x^2 + 6x + 9) - 9x - 27 + 8
g (x) = 2x^2 + 12x + 18 - 9x - 27 +8
G (x) = 2x^2 + 3x - 1
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