Question

factorise each of the following 27 y cube + 125 Z cube​

Answer 1

27z^3 + 125z^3

a^3+b^3= (a+b) (a^2+b^2+a-b)

therefore, a= a= 3y ,b=5z

(3y+5z) (3y^2+5z^2+3y-5z)

hope it helps.....