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Subjects
Mathematics CBSE
Class 9
Polynomials
Textbook Questions
21.
Exercise Problems X
Exercise condition:
1
m.
Factorise
: \(27x^3 + y^3 + z^3 – 9xyz\)
\(27x^3 + y^3 + z^3 – 9xyz=\)
\( (3x + y + z) (9x^2 + y^2 + z^2 – 3xy – yz – 3xz)\)
\( (3x - y - z) (9x^2 + y^2 + z^2 – 6xy –2 yz – 6xz)\)
\( (3x - y - z) (9x^2 +y^2 + z^2 – 3xy – yz – 3xz)\)
\( (3x + y + z) (3x^2 + y^2 + z^2 – 6xy – 2yz – 6xz)\)
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