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Which expression is equivalent to 83×878^3 \times 8^7?\newlineChoices:\newline(A) 8108^{10}\newline(B) 1821\frac{1}{8^{21}}\newline(C) 1810\frac{1}{8^{10}}\newline(D) 8218^{21}

Full solution

Q. Which expression is equivalent to 83×878^3 \times 8^7?\newlineChoices:\newline(A) 8108^{10}\newline(B) 1821\frac{1}{8^{21}}\newline(C) 1810\frac{1}{8^{10}}\newline(D) 8218^{21}
  1. Identify Operation: Identify the operation needed for 83×878^3 \times 8^7.\newlineWhen multiplying powers with the same base, we add the exponents.\newline83×87=83+78^3 \times 8^7 = 8^{3+7}
  2. Add Exponents: Perform the addition of the exponents.\newline3+7=103 + 7 = 10\newlineSo, 83×87=8108^3 \times 8^7 = 8^{10}
  3. Match Result: Match the result with the given choices.\newlineThe expression 8108^{10} corresponds to choice (A)(A)