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What is the sum of the (xy)-term and (yz)-term in ( (3x-2y+z)^2 )?
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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).
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What is the correct answer to this question?
( -12xy-4yz )
Why is this the correct answer?
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).
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Exploring Algebraic Identities. Topic: Algebraic identities.
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