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What is the value of (7^1\times7^2)?
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Answer and explanation
Correct answer: 343
When powers with the same base are multiplied, their exponents are added: \(7^1\times7^2=7^{1+2}=7^3=343\). Therefore, 343 is correct. \(49\) is only the value of \(7^2\), so it is not correct. Exam tip: for multiplication with the same base, add the exponents, not the bases.
Frequently asked questions
What is the correct answer to this question?
343
Why is this the correct answer?
When powers with the same base are multiplied, their exponents are added: \(7^1\times7^2=7^{1+2}=7^3=343\). Therefore, 343 is correct. \(49\) is only the value of \(7^2\), so it is not correct. Exam tip: for multiplication with the same base, add the exponents, not the bases.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Number Systems. Topic: Exponents.
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