Question

If f(n) = n2 - 2n, which of the following options are correct? Select all that apply. f(2) = 0 f(-2) = 0 f(1) = 3 f(5) = 35 f(-4) = 24 first to answer corrects ill give them 100 points

Answer 1

f(2) = 0 is correct because f(2) = 2^2 - 2(2) = 0.

f(-2) = 0 is not correct because f(-2) = (-2)^2 - 2(-2) = 8.

f(1) = 3 is correct because f(1) = 1^2 - 2(1) = -1 + (-1) + 3 = 3.

f(5) = 35 is correct because f(5) = 5^2 - 2(5) = 25 - 10 = 15 + 20 = 35.

f(-4) = 24 is not correct because f(-4) = (-4)^2 - 2(-4) = 16 + 8 = 24.

Therefore, the correct options are: f(2) = 0, f(1) = 3, and f(5) = 35.