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Subjects
Class 9MathematicsExploring Algebraic IdentitiesFactorisationEasyLevel 75
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What are the correct factors of (a^2+7a+12)?

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Answer and explanation

Correct answer: ((a+3)(a+4))

(3+4=7) and (3\times4=12). Exam tip: find two numbers whose sum is the middle coefficient.

Related tags

Trinomial FactorisationMiddle TermAlgebra

Frequently asked questions

What is the correct answer to this question?

((a+3)(a+4))

Why is this the correct answer?

(3+4=7) and (3\times4=12). Exam tip: find two numbers whose sum is the middle coefficient.

Which subject and chapter does this question cover?

This is a Class 9 Mathematics question. Chapter: Exploring Algebraic Identities. Topic: Factorisation.

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  5. 5In which of the following expressions is \(3m\) a common factor of every term?
  6. 6Which of the following expressions is a difference of two squares and can be factorised using the identity?
  7. 7Which identity is used to factorise (x^2-9)?
  8. 8Which is the correct factorisation of (x^2-16)?
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  10. 10Which of the following expressions can be factorised using the identity for the difference of two squares, \((a+b)(a-b)\)?
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