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son4ous [18]
3 years ago
7

Given that n is a whole number explain why n^2 - n is always an even number

Mathematics
1 answer:
dusya [7]3 years ago
5 0
Gonna send right now!
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(x−5) ^2 in expanded
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Answer:

x^{2}-10x+25

Step-by-step explanation:

We can rewrite the question as (x-5)*(x-5).

Using the FOIL Method (First, Outside, Inside, Last):

x^{2}-5x-5x+25

This simplifies to x^{2}-10x+25

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