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Class 9 Mathematics Exploring Algebraic Identities Algebraic identitiesHard

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What will be the term containing (x^2) in ( (x+5)^3-(x-5)^3 )?

Answer and explanation

Correct answer: (30x^2)

On expanding cubes, (+15x^2) and (-(-15x^2)) combine to give (30x^2). Exam tip: signs change in subtraction.

Related tags

Cube Difference Term Identification X Square Term Algebraic Identities Exploring Algebraic Identities Mathematics Class 9 Mcq

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