Question

factorise 27 y^3-125z^3​

Answer 1

Answer:

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

Step-by-step explanation:

27y^3 - 125z^3

= (3y)^3 - (5z)^3

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

{since, (a^3 - b^3) = ( a^2 + ab + b^2)}

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