Question

factorise it.


in attechment.



plz solve it.​

Answer 1

$\huge\red{solved}$

Answer 2

Step-by-step explanation:

(i)

Given Equation is 27y³ + 125z³

= (3y)³ + (5z)³

∴ a³ + b³ = (a + b)(a² + b² - ab)

= (3y + 5z)[(3y)² + (5z)² - (3y)(5z)]

= (3y + 5z)(9y² + 25z² - 15yz)

(ii)

Given Equation is 64m³ - 343n³

= (4m)³ - (7n)³

∴ a³ - b³ = (a - b)(a² + b² + ab)

= (4m - 7n)[(4m)² + (7n)² + (4m)(7n)]

= (4m - 7n)(16m² + 49n² + 28mn)

Hope it helps!