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What is obtained after taking 2 common from \(2x+6\)?

Answer and explanation

Correct answer: \(2(x+3)\)

Answer: A, \(2(x+3)\). Taking 2 common means finding the expression left after dividing every term by 2. For the first term, \(2x\div2=x\). For the second term, \(6\div2=3\). Put the common factor outside and the results inside the bracket: \(2x+6=2(x+3)\). Option A is correct because expanding gives \(2x+6\). Option B would expand to \(2x+12\), so the constant term is too large. Option C does not represent taking 2 common from both terms; it also expands to \(2x+6x=8x\), not the original expression. Option D expands to \(6x+12\), so it is incorrect. Memory cue: divide every term by the factor taken outside; do not leave an unchanged term inside the bracket. Expansion is the fastest check.

Related tags

Common FactorFactorisationLinear ExpressionsAlgebraic IdentitiesExploring Algebraic IdentitiesMathematicsClass 9 Mcq

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