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Class 9 Mathematics Exploring Algebraic Identities Visual models of identitiesMediumLevel 69

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If a rectangle with sides (r+8) and (r-8) is made, what result is obtained?

Answer and explanation

Correct answer: (r^2-64)

This is a difference of squares model, so (8^2=64) is subtracted. In exams, identify ((r+8)(r-8)) directly.

Related tags

Difference-Of-Squares Rectangle Visual

Frequently asked questions

What is the correct answer to this question?

(r^2-64)

Why is this the correct answer?

This is a difference of squares model, so (8^2=64) is subtracted. In exams, identify ((r+8)(r-8)) directly.

Which subject and chapter does this question cover?

This is a Class 9 Mathematics question. Chapter: Exploring Algebraic Identities. Topic: Visual models of identities.

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