Exercise Problems IX — task. Mathematics CBSE, Class 9.

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Factorize each of the following:

(i)

$27y^3 + 125z^3=$

(ii)

$64m^3 – 343n^3=$

Answer variants:

$(3y + 5z) (9y^2 – 15yz + 25z^2)$

$(4m – 7n) [(4m)^2 + (4m)(7n) + (7n)^2]$

$(4m + 7n) [(4m)^2 -(4m)(7n) + (7n)^2]$

$(3y -5z) (9y^2 + 15yz + 25z^2)$

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