What is the value of (9^3+7^2)?
Answer and explanation
Correct answer: 778
Evaluate the powers first: \(9^3=9\times9\times9=729\) and \(7^2=7\times7=49\). Therefore, \(9^3+7^2=729+49=778\), so option A is correct. Exam tip: calculate each power separately before performing the addition.
Frequently asked questions
What is the correct answer to this question?
778
Why is this the correct answer?
Evaluate the powers first: \(9^3=9\times9\times9=729\) and \(7^2=7\times7=49\). Therefore, \(9^3+7^2=729+49=778\), so option A is correct. Exam tip: calculate each power separately before performing the addition.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Number Systems. Topic: Exponents.
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