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Class 9 Mathematics Exploring Algebraic Identities Algebraic identitiesExpert

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What is the sum of the (xy)-term and (yz)-term in ( (3x-2y+z)^2 )?

Answer and explanation

Correct answer: ( -12xy-4yz )

The (xy)-term is (2\cdot3x\cdot(-2y)=-12xy) and the (yz)-term is (2\cdot(-2y)\cdot z=-4yz). Their sum is (-12xy-4yz).

Related tags

Three Term Square Term Sum Negative Coefficients Algebraic Identities Exploring Algebraic Identities Mathematics Class 9 Mcq

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