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What is the value of \(2^3+2^4\)?

Answer and explanation

Correct answer: 24

The terms are being added, not multiplied, so their exponents cannot be added directly. \(2^3+2^4=8+16=24\), so the correct answer is 24. Choosing 128 (=\(2^7\)) reflects the common mistake of applying the exponent rule for multiplication to addition. Exam tip: evaluate each power first and then add the results.

Related tags

PolynomialsExponentsReal NumbersArithmetic OperationsOperations On Real Numbers And The Laws Of ExponentsMathematicsClass 10 Mcq

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