What is the value of (38^2-444)?
Answer and explanation
Correct answer: 1000
First find the square of 38: \(38^2=38\times38=1444\). Then, \(1444-444=1000\), so the correct answer is 1000. An answer such as 900 can result from an error in finding the square or in subtraction. Exam tip: In an expression with brackets, evaluate the exponent (square) before performing subtraction.
Frequently asked questions
What is the correct answer to this question?
1000
Why is this the correct answer?
First find the square of 38: \(38^2=38\times38=1444\). Then, \(1444-444=1000\), so the correct answer is 1000. An answer such as 900 can result from an error in finding the square or in subtraction. Exam tip: In an expression with brackets, evaluate the exponent (square) before performing subtraction.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Number Systems. Topic: Exponents.
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