Basic Math Examples

$k (k + 1) (k + 2) - 3 k (k + 1)$

Step 1

Factor $k (k + 1)$ out of $k (k + 1) (k + 2) - 3 k (k + 1)$ .

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Step 1.1

Factor $k (k + 1)$ out of $- 3 k (k + 1)$ .

$k (k + 1) (k + 2) + k (k + 1) (- 3)$

Step 1.2

Factor $k (k + 1)$ out of $k (k + 1) (k + 2) + k (k + 1) (- 3)$ .

$k (k + 1) (k + 2 - 3)$

Step 2

Subtract $3$ from $2$ .

$k (k + 1) (k - 1)$