Algebra Examples

$3^{x} \cdot 3^{- x}$

Step 1

Multiply $3^{x}$ by $3^{- x}$ 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.

$3^{x - x}$

Step 1.2

Subtract $x$ from $x$ .

$3^{0}$

Step 2

Simplify $3^{0}$ .

$1$