Question

Factorise

27y cube +125z cube

Answer 1

Answer:

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

Step-by-step explanation:

27y^3+125z^3 (we can also write it like this)

=(3y)^3+(5z)^3. (applying formula for a^3+b^3)

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

tell me if I'm wrong