Answer:
4x² - x - 1
Step-by-step explanation:
(f - g)(x) = f(x) - g(x) , thus
f(x) - g(x)
= 4x² - (x + 1) ← distribute parenthesis by - 1
= 4x² - x - 1
all work is shown and pictured
it says 2 for $10 when you can easily get 2 for $7.60
a = 15
18000/67 是 268.657
希望有帮助:)
Answer: (4,2)
