Algebra Examples

$(1.2 \cdot 10^{7}) (4 \cdot 10^{- 2})$

Step 1

Multiply $1.2$ by $4$ .

$4.8 (10^{7} \cdot 10^{- 2})$

Step 2

Multiply $10^{7}$ by $10^{- 2}$ by adding the exponents.

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Step 2.1

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

$4.8 \cdot 10^{7 - 2}$

Step 2.2

Subtract $2$ from $7$ .

$4.8 \cdot 10^{5}$