If f(x) = x2 - 2x, find: f(-4) = [?]

1 answer:

7 0

Answer: 8

How?

Replace the “X’s” with -4.

-4^2 - 2(-4)

Next, Evaluate the power.

-16 - 2 (-4)

Now, Calculate the rest.

-16 + 8

-8

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