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Which of the following expressions is in the form of the square of a binomial?
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Answer and explanation
Correct answer: \((x+y)^2\)
\((x+y)^2\) is the square of the binomial \(x+y\). Its expansion is \(x^2+2xy+y^2\). In contrast, \((x+y)(x-y)\) represents a difference of squares. Exam tip: look first for an outside power of 2.
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What is the correct answer to this question?
\((x+y)^2\)
Why is this the correct answer?
\((x+y)^2\) is the square of the binomial \(x+y\). Its expansion is \(x^2+2xy+y^2\). In contrast, \((x+y)(x-y)\) represents a difference of squares. Exam tip: look first for an outside power of 2.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Exploring Algebraic Identities. Topic: Algebraic identities.
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