Basic Math Examples

$(9 m - 6 m) (- 3 m - m)$

Step 1

Subtract $6 m$ from $9 m$ .

$3 m (- 3 m - m)$

Step 2

Subtract $m$ from $- 3 m$ .

$3 m (- 4 m)$

Step 3

Rewrite using the commutative property of multiplication.

$3 \cdot - 4 m \cdot m$

Step 4

Multiply $m$ by $m$ by adding the exponents.

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Step 4.1

Move $m$ .

$3 \cdot - 4 (m \cdot m)$

Step 4.2

Multiply $m$ by $m$ .

$3 \cdot - 4 m^{2}$

Step 5

Multiply $3$ by $- 4$ .

$- 12 m^{2}$