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Which of the following expressions is a difference of squares of two binomials?

Answer and explanation

Correct answer: \(4a^2-12ab+9b^2\)

None of the options is a difference of squares. Option B equals \((2a-3b)^2\), which is a square of a binomial, not \(A^2-B^2\). Hence the item is defective. Exam tip: a basic difference of squares has no middle term, as in \(u^2-v^2\).

Related tags

Algebraic IdentitiesQuadratic ExpressionsDifference Of SquaresBinomial SquareClass 9Exploring Algebraic IdentitiesMathematicsClass 9 Mcq

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