Question

Jika f(x) = 2 x^2 - 3 x + 1 dan g(x) = √ x + 2 , nilai (f°g) (9) =​

Answer 1

f(x) = 2x² - 3x + 1

g(x) = √x + 2

(fog)(9) = f(g(9))

= f(√9 + 2)

= f(3 + 2)

= f(5)

= 2(5)² - 3(5) + 1

= 2(25) - 15 + 1

= 50 - 15 + 1

= 36

Answer 2

Penjelasan dengan langkah-langkah:

gof)(x) = g (f(x)) x −1 = g (2x + 3) 5x − 2 x−2 A. D. x −1 x −1 = (2x+3) 2 -3(2x+3) + 2 5x + 2 x+2 = 4x 2 + 12x + 9 – 6x – 9 + 2 ...