Which of the following pairs of binomials is a pair of conjugates whose product is obtained using the difference of squares identity?
Answer and explanation
Correct answer: \(5x+2y\) और \(5x-2y\)
In conjugate binomials, one term is the same and the other has an opposite sign. Thus, \((5x+2y)(5x-2y)=25x^2-4y^2\). In option B both binomials are identical, so it uses a square identity instead. Exam tip: check for matching terms and opposite signs.
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What is the correct answer to this question?
\(5x+2y\) और \(5x-2y\)
Why is this the correct answer?
In conjugate binomials, one term is the same and the other has an opposite sign. Thus, \((5x+2y)(5x-2y)=25x^2-4y^2\). In option B both binomials are identical, so it uses a square identity instead. Exam tip: check for matching terms and opposite signs.
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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