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Write (a^2-16) in factors.
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Answer and explanation
Correct answer: ( (a-4)(a+4) )
It is (a^2-4^2) so the difference of squares identity applies. Exam tip: remember (p^2-q^2=(p-q)(p+q)).
Frequently asked questions
What is the correct answer to this question?
( (a-4)(a+4) )
Why is this the correct answer?
It is (a^2-4^2) so the difference of squares identity applies. Exam tip: remember (p^2-q^2=(p-q)(p+q)).
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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