Basic Math Examples

$- 12 r \cdot (- 5 r)$

Step 1

Rewrite using the commutative property of multiplication.

$- 12 \cdot - 5 r \cdot r$

Step 2

Multiply $r$ by $r$ by adding the exponents.

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Step 2.1

Move $r$ .

$- 12 \cdot - 5 (r \cdot r)$

Step 2.2

Multiply $r$ by $r$ .

$- 12 \cdot - 5 r^{2}$

Step 3

Multiply $- 12$ by $- 5$ .

$60 r^{2}$