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What is the value of ((12^2-5^2)\div7)?
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Answer and explanation
Correct answer: 17
Evaluate the powers first: \(12^2=144\) and \(5^2=25\). Thus, \(12^2-5^2=144-25=119\), and \(119\div7=17\). Therefore, the correct answer is 17. Exam tip: follow the order of operations—powers first, then subtraction, and division last.
Frequently asked questions
What is the correct answer to this question?
17
Why is this the correct answer?
Evaluate the powers first: \(12^2=144\) and \(5^2=25\). Thus, \(12^2-5^2=144-25=119\), and \(119\div7=17\). Therefore, the correct answer is 17. Exam tip: follow the order of operations—powers first, then subtraction, and division last.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Number Systems. Topic: Exponents.
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