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If (32^{x}=8), then (x=)?

Answer and explanation

Correct answer: \(\frac{3}{5}\)

Express both numbers as powers of the same base: \(32=2^5\) and \(8=2^3\). Thus, \((2^5)^x=2^3\), giving \(2^{5x}=2^3\). Since the bases are equal, compare the exponents: \(5x=3\), so \(x=\frac{3}{5}\). Therefore, option B is correct. Exam tip: In exponential equations, rewrite both sides with the same base and then equate their exponents.

Related tags

ExponentsNumber SystemsExponential EquationsClass 9MathematicsClass 9 Mcq

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