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Find the value of \(12^2 + 13^3\).

Answer and explanation

Correct answer: 2341

Compute the powers separately: \(12^2=144\) and \(13^3=13\times13\times13=2197\). Adding gives \(144+2197=2341\). Option B (2331) is a common trap — it results if \(13^3\) is mistakenly taken as \(2187\) (confusing with \(3^7\)), producing \(144+2187=2331\). The other wrong choices arise from simple multiplication or addition errors. Exam tip: always calculate powers first and check the last digit to catch simple slip errors before finalizing the answer.

Related tags

ExponentsNumber-SystemsArithmeticPowersClass-9Number SystemsMathematicsClass 9 Mcq

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