Factor n^2-4n

$n^{2} - 4 n$

Step 1

Factor $n$ out of $n^{2}$ .

$n \cdot n - 4 n$

Step 2

Factor $n$ out of $- 4 n$ .

$n \cdot n + n \cdot - 4$

Step 3

Factor $n$ out of $n \cdot n + n \cdot - 4$ .

$n (n - 4)$

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