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What is the value of (14^2-5^2)?
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Answer and explanation
Correct answer: 171
The correct answer is 171. First find the squares: \(14^2=196\) and \(5^2=25\). Therefore, \(14^2-5^2=196-25=171\). A value such as 161 may result from an error in subtraction. Exam tip: calculate each square first and then subtract carefully.
Frequently asked questions
What is the correct answer to this question?
171
Why is this the correct answer?
The correct answer is 171. First find the squares: \(14^2=196\) and \(5^2=25\). Therefore, \(14^2-5^2=196-25=171\). A value such as 161 may result from an error in subtraction. Exam tip: calculate each square first and then subtract carefully.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Number Systems. Topic: Exponents.
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