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Class 9 Mathematics Exploring Algebraic Identities Algebraic identitiesMediumLevel 62

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Simplify ( (x+y)^2-x^2-y^2 ).

Answer and explanation

Correct answer: (2xy)

( (x+y)^2=x^2+2xy+y^2 ), so (x^2) and (y^2) cancel leaving (2xy). Exam tip: expand and subtract.

Related tags

Simplification 2Xy Binomial Square

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What is the correct answer to this question?

(2xy)

Why is this the correct answer?

( (x+y)^2=x^2+2xy+y^2 ), so (x^2) and (y^2) cancel leaving (2xy). Exam tip: expand and subtract.

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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