Evaluate Using Scientific Notation (3.210^-5)(2.110^-3)

$(3.2 \cdot 10^{- 5}) (2.1 \cdot 10^{- 3})$

Step 1

Multiply $3.2$ by $2.1$ .

$6.72 (10^{- 5} \cdot 10^{- 3})$

Step 2

Multiply $10^{- 5}$ by $10^{- 3}$ by adding the exponents.

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$6.72 \cdot 10^{- 5 - 3}$

Subtract $3$ from $- 5$ .

$6.72 \cdot 10^{- 8}$

Evaluate Using Scientific Notation (3.2*10^-5)(2.1*10^-3)