3 years ago

If f(n) = n2 - n, then f(-4) is _____. -20 20 12 -12

Mathematics

2 answers:

kolbaska11 [484]3 years ago

8 0

The correct option is "20" because

f(n)=n2−n
(−4)=(−4)2−(−4)
=16+4
=20

Alekssandra [29.7K]3 years ago

5 0

Answer:

The answer is 20.

Step-by-step explanation:

The answer of this question is applying the number -4 in the equation, this is:

$f(n)=n^{2} -n\\Replacing\\f(-4)=(-4)^{2} -(-4)\\f(-4)=16+4\\f(-4)=20$

The answer is 20.

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