Example Problems VI — task. Mathematics CBSE, Class 9.

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Factorise :

$8x^3+ y^3+ 27z^3– 18xyz$

$8x^3+ y^3+ 27z^3– 18xyz=$

$(2x + y + 3z) (4x^2+ y^2+ 9z^2+ 2xy +3yz + 6xz)$
$(2x + y + 3z) (4x^2+ y^2+ 9z^2– 2xy – 3yz – 6xz)$
$(2x -y -3z) (4x^2+y^2+ 9z^2– 2xy + 3yz – 6xz)$
$(2x - y + 3z) (4x^2+ y^2+ 9z^2– 2xy +3yz + 6xz)$

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