Question

factorise (5x-4y)^3+4(5x-4y^2)

Answer 1

Answer:

Step-by-step explanation:

let 5x-4y be a

a^3 +4a^2

a^2 (a+4)

a^2 (a+4)

putting value

(5x-4y)(5x+4y)(5x-4y+4)