Question

5) n² - 2 + 1 by n-1​

Answer 1

Step-by-step explanation:

your answer

very simple question...

n2-2+1 by n-1

n-1=n2

it's a correct answer

:)

Answer 2

Answer:

$= \frac{ {n}^{2} - 2n + 1}{n - 1} \\ \\ = \frac{ {n}^{2} - n - n + 1}{n - 1} \\ \\ = \frac{n(n - 1) - 1(n - 1)}{n - 1} \\ \\ = \frac{(n - 1)(n - 1)}{n - 1} \\ \\ = n - 1$