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Factorise (2xy-3x+4y-6) by grouping.

Answer and explanation

Correct answer: ((x+2)(2y-3))

Grouping works by arranging terms so that the same bracket appears in both groups. For \(2xy-3x+4y-6\), group the first two terms and the last two terms: \(x(2y-3)+2(2y-3)\). Both groups contain the identical factor \(2y-3\), so it can be taken outside the bracket.

Taking out this common factor gives \( (x+2)(2y-3)\), which is option A. Expanding confirms the result: \(x(2y-3)+2(2y-3)=2xy-3x+4y-6\). Option B changes the signs and would produce different terms. Option C groups the expression incorrectly, and option D has factors whose product does not reproduce the original four terms. The repeated bracket is the key recognition step.

Related tags

GroupingCommon BinomialFactorisation

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