Question

If f(x) = x2 – 2x, find:
f(-3) = [?]

Answer 1

15

Explanation:

f(-3)=(-3)^2 - 2(-3)

= 9 + 6 = 15

Answer 2

9514 1404 393

Answer:

15

Explanation:

Put the value where the variable is and do the arithmetic.

f(-3) = (-3)² -2(-3) = 9 +6

f(-3) = 15