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What is the simplified form of \(\frac{(3^2)^4}{3^5\cdot 3^{-2}}\)?

Answer and explanation

Correct answer: \(3^5\)

Using the power-of-a-power rule, \((3^2)^4=3^{2\times4}=3^8\). For multiplication of powers with the same base, add the exponents: \(3^5\cdot3^{-2}=3^{5+(-2)}=3^3\). Therefore, \(\frac{3^8}{3^3}=3^{8-3}=3^5\), so option A is correct. Option B gives only the denominator’s power, not the simplified value of the whole fraction. Exam tip: add exponents when multiplying like bases and subtract them when dividing.

Related tags

PolynomialsExponent LawsReal NumbersSimplificationPowersOperations On Real Numbers And The Laws Of ExponentsMathematicsClass 10 Mcq

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