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What is the expansion of ( (3x-2y)^2 )?
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Answer and explanation
Correct answer: (9x^2-12xy+4y^2)
In ( (a-b)^2 ) the mixed term is negative. Exam tip: write ((3x)^2=9x^2) and ((2y)^2=4y^2).
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What is the correct answer to this question?
(9x^2-12xy+4y^2)
Why is this the correct answer?
In ( (a-b)^2 ) the mixed term is negative. Exam tip: write ((3x)^2=9x^2) and ((2y)^2=4y^2).
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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