$2^{3} \times 2^{5}$ =

2^{8}

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2^{4}

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2^{15}

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Solution

The correct option is A $2^{8}$
When two powers with the same base are multiplied, their exponents get added. This is called the product law.
i.e., $a^{m} \times a^{n} = a^{m + n}$
Thus, $2^{3} \times 2^{5} = 2^{3 + 5} = 2^{8} .$

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2^{3} \times 2^{5} = 2^{8}

2^{3} + 2^{5} = 2^{8}

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