What is the value of (28^3)?
Answer and explanation
Correct answer: 21952
An exponent of 3 means multiplying 28 by itself three times: \(28^3=28\times28\times28\). First, \(28\times28=784\), and then \(784\times28=21952\). Therefore, the correct answer is 21952. A value such as 20952 can result from an arithmetic error in multiplication. Exam tip: to find a cube, first find the square of the number and multiply it by the same number.
Frequently asked questions
What is the correct answer to this question?
21952
Why is this the correct answer?
An exponent of 3 means multiplying 28 by itself three times: \(28^3=28\times28\times28\). First, \(28\times28=784\), and then \(784\times28=21952\). Therefore, the correct answer is 21952. A value such as 20952 can result from an arithmetic error in multiplication. Exam tip: to find a cube, first find the square of the number and multiply it by the same number.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Number Systems. Topic: Exponents.
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