»f(x) = 9(9 + x)(10)
subtitute x = 2 for f(x).
»f(5) = 9(9 + 5)(10)
»f(5) = 9(14)(10)
»f(5) = 1,260✅
Answer:
1260
Step-by-step explanation:
f(5) = 9(9 + 5)(10)
= 9(14)(10)
= 126(10)
= 1260
