53.4k views
2 votes
Anyone know if this is right?

Anyone know if this is right?-example-1

2 Answers

3 votes

Answer:

n² - 2n + 1

Explanation:

You are to square;

(n - 1)²

This is the same as,

(n - 1)(n - 1)

Multiplying the above we get;

n² - n - n + 1

Finally,

n² - 2n + 1

User Janeris
by
8.6k points
5 votes

(n-1)^2 = n^2 +1 -2n so the third option form top down

User Toufikovich
by
7.7k points

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