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Coordinate Geometry
Question
Wired Faculty App

Factorise:
(x - 3y)3 + (3y - 7z + (7z - x)3

Answer

We have
(x - 3y) + (3y - 7z) + (7z - x) = 0
∴ (x - 3y)3 + (3y - 7z)3 + (7z - x)3
= 3(x - 3y) (3y - 7z) (7z - x)

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Some More Questions From Coordinate Geometry Chapter

Find the value of n, given (81)5/n = 243.

Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer.

4x2 - 3x + 7