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What is the value of ( (2x+1)(2x+9)-(2x+5)^2 )?
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Answer and explanation
Correct answer: (-16)
The first product is (4x^2+20x+9) and the second is (4x^2+20x+25). Exam tip: cancel like terms and compare constants.
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What is the correct answer to this question?
(-16)
Why is this the correct answer?
The first product is (4x^2+20x+9) and the second is (4x^2+20x+25). Exam tip: cancel like terms and compare constants.
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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