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What is the value of (18^2 + 7^3)?

Answer and explanation

Correct answer: 667

Compute the powers separately: \(18^2=324\) and \(7^3=343\). Adding them gives \(324+343=667\), so 667 is correct. The close distractor 657 is wrong — it would result from mistakenly taking \(7^3\) as 333 (324+333=657). Exam tip: evaluate each power first, write intermediate results, then add to avoid arithmetic mistakes.

Related tags

ExponentsNumber-SystemsArithmeticPowersNumber SystemsMathematicsClass 9 Mcq

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