Lucy states that $$a3×a7=a10. Brad states that $$a3×a7=a21.Who is correct?
Question
Lucy states that a3×a7=a10. Brad states that a3×a7=a21.Who is correct?
Solution
Neither Lucy nor Brad is correct. In the rules of exponents, when you multiply two exponents with the same base, you add the powers. So, a^3 * a^7 = a^(3+7) = a^10. Therefore, Lucy is correct and Brad is incorrect.
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