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Which algebraic identity represents the square of the sum of two terms?

Answer and explanation

Correct answer: \((a+b)^2=a^2+2ab+b^2\)

On expanding \((a+b)^2\), the terms obtained are \(a^2\), \(2ab\), and \(b^2\), so option A is correct. Option B is the identity for the square of a difference. Exam tip: the middle term is positive in the square of a sum.

Related tags

Algebraic IdentitiesSquare Of SumClass 9 MathsPolynomial IdentitiesConceptual AlgebraExploring Algebraic IdentitiesMathematicsClass 9 Mcq

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