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Which option correctly identifies the mistake in treating (x^2y) and (xy^2) as like terms?

Answer and explanation

Correct answer: They are unlike because powers are different

The governing concept is identification of like terms. Terms are like only when they contain exactly the same variables raised to exactly the same powers; their numerical coefficients may differ, but the variable part must match. In x^2y, x has power 2 and y has power 1. In xy^2, x has power 1 and y has power 2. Since the corresponding powers differ, the terms are unlike, so option C correctly identifies the mistake. Option B notices that both variables occur but ignores their exponents. Options A and D are incorrect because absence of a written coefficient does not make terms like, and these are not constants.

Related tags

Algebraic ExpressionsLike TermsError AnalysisLike And Unlike TermsCommon QuestionsCommonMathematicsClass 9 Mcq

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