Basic Math Examples

$\frac{1}{a^{3} a^{- 7}}$

Step 1

Multiply $a^{3}$ by $a^{- 7}$ by adding the exponents.

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Step 1.1

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

$\frac{1}{a^{3 - 7}}$

Step 1.2

Subtract $7$ from $3$ .

$\frac{1}{a^{- 4}}$

Step 2

Move $a^{- 4}$ to the numerator using the negative exponent rule $\frac{1}{b^{- n}} = b^{n}$ .

$a^{4}$