Which is the correct expansion of ( (x-3)^3 )?
Answer and explanation
Correct answer: (x^3-9x^2+27x-27)
In the cube of a difference, signs occur in (+), (-), (+), (-) order. Exam tip: check both (3^2) and (3^3).
Frequently asked questions
What is the correct answer to this question?
(x^3-9x^2+27x-27)
Why is this the correct answer?
In the cube of a difference, signs occur in (+), (-), (+), (-) order. Exam tip: check both (3^2) and (3^3).
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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