Respuesta :
Answer:
11
Step-by-step explanation:
(f + g)(x)
= f(x) + g(x)
= x² - 6x - 4 +5x + 3 ← collect like terms
= x² - x - 1
then
(f + g)(- 3) = (- 3)² - (- 3) - 1 = 9 + 3 - 1 = 11
Answer:
11
Step-by-step explanation:
F(–3)=(–3)²–6(–3)–4===> 9+18–4=23
g(–3)=5(–3)+3=‐15+3=–12
23–12=11
