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Class 9 Mathematics Exploring Algebraic Identities Algebraic identitiesMediumLevel 62

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Which term will not appear in ( (2x-7)(2x+7) )?

Answer and explanation

Correct answer: (28x)

Due to opposite signs, the middle term cancels. Exam tip: ( (a+b)(a-b) ) has no middle term.

Related tags

Middle Term Cancellation Difference Of Squares 2X 7

Frequently asked questions

What is the correct answer to this question?

(28x)

Why is this the correct answer?

Due to opposite signs, the middle term cancels. Exam tip: ( (a+b)(a-b) ) has no middle term.

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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