# Evaluate: 8^{-7} \times 8^7 \times 10^4 \times 10^{-4}

## Expression: ${8}^{-7} \times {8}^{7} \times {10}^{4} \times {10}^{-4}$

Multiply the terms with the same base by adding their exponents

${8}^{-7+7} \times {10}^{4} \times {10}^{-4}$

Multiply the terms with the same base by adding their exponents

${8}^{-7+7} \times {10}^{4-4}$

The sum of two opposites equals $0$

${8}^{0} \times {10}^{4-4}$

The sum of two opposites equals $0$

${8}^{0} \times {10}^{0}$

Any non-zero expression raised to the power of $0$ equals $1$

$1 \times {10}^{0}$

Any non-zero expression raised to the power of $0$ equals $1$

$1 \times 1$

Any expression multiplied by $1$ remains the same

$1$

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