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What is the value of \(28^2 + 17^3\)?

Answer and explanation

Correct answer: 5697

Compute the powers first: \(28^2 = 784\) and \(17^3 = 4913\). Adding them gives \(784 + 4913 = 5697\). The closest distractor 5687 would result from mistakenly taking \(17^3=4903\) (10 less), while 5707 could come from adding an extra 10. Exam tip: evaluate each power separately and then add; use the units digit check (4+3=7) to quickly verify the last digit of the sum.

Related tags

ExponentsNumber SystemsArithmeticPowersMathematicsClass 9 Mcq

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