Question

diketahui f(x)= 2x-3 dan g(x)= x²+2x-3 tentukan nilai (fog) (2)!​

Answer 1

Jawaban:

19

Penjelasan dengan langkah-langkah:

fog = 2(x² + 2x + 3) -3

fog = 2x² + 4x +6 - 3

fog = 2x² + 4x + 3

fog (2) = 2(2)² + 4(2) +3

fog = 8 + 8 + 3 = 19

Answer 2

Jawaban:

(fog)

= f(g(x))

= f (x²+2x-3)

= 2 (x²+2x-3) - 3

= 2x²+ 4x - 6 - 3

= 2x² + 4x - 9

(fog) (2) = 2.2² + 4.2 -9

= 2.4+8-9

= 8+8-9

= 7

maaf kalau salah