f(x) = x + 3 g(x) = 2x² - x (g o f)?
Matematika
nisrinaatikah11
Pertanyaan
f(x) = x + 3
g(x) = 2x² - x
(g o f)?
g(x) = 2x² - x
(g o f)?
2 Jawaban
-
1. Jawaban keruasriki
langsung aja ya
g(f(x))
g(x + 3)
2(x + 3)^2 - (x + 3)
2(x^2 + 6x + 9) - x - 3
2x^2 + 12x + 18 - x - 3
2x^2 + 11x + 15 -
2. Jawaban Anonyme
f (x) = x + 3
g (x) = 2x² - x
gof (x)
= g (f (x))
= g (x + 3)
= 2 (x + 3)² - (x + 3)
= 2 (x² + 6x + 9) - x - 3
= 2x² + 12x + 18 - x - 3
= 2x² + 12x - x + 18 - 3
= 2x² + 11x + 15