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Lady bird [3.3K]
3 years ago
6

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

Mathematics
2 answers:
kolbaska11 [484]3 years ago
8 0
<span>The correct option is "20" because

f(n)=<span>n2</span>−n
(−4)=(−4<span>)2</span>−(−4)
      =16+4
      =20</span>
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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