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Popular >

expand (n-1)^2

Solution

expand

(n - 1)^{2}

Solution

n^{2} - 2 n + 1

Solution steps

(n - 1)^{2}

Apply Perfect Square Formula:

(a - b)^{2} = a^{2} - 2 ab + b^{2}

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

= n^{2} - 2 n \cdot 1 + 1^{2}

Simplify

n^{2} - 2 n \cdot 1 + 1^{2} : n^{2} - 2 n + 1

= n^{2} - 2 n + 1

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Frequently Asked Questions (FAQ)

What is expand (n-1)^2 ?
The solution to expand (n-1)^2 is n^2-2n+1