Question

Factorie : 27x³+125y³

Answer 1

Step-by-step explanation:

27x3+ 125y3

We know that,

a3+ b3 = (a+b) ( a3- ay + b2 )

So, here

a = 3x , b = 5y

= 27b³ + 125y³ = (3x + 5y) { (3x)² - 3y*5x + (5y)² }

= 27b³ + 125y³ = (3x + 5y) { 9x² - 15xy + 25y² }