Question

Factorise using algebraic identities: 9(a + b)³ - 25(a + b)​

Answer 1

Answer:

here g(a+b)^3 - 25 (a+b)

9[a^3 + b^3 + 3a^2b + 3ab^2] - 25(a+b)

9a^3 + 9b^3 + 27a^2b + 27ab^2 - 25(a+b)

9a^3 + 9b^3 + 27a^2b +27ab^2 -25a -25b

here last answer you can common any number

Answer 2

Answer:

(a+b)[9(a+b)²-25]

(a+b)[9a²+9b²+18ab-25]

9a³+9ab²+18a²b-25a+9a²b+9b³+18ab²-25b

9a³+9b³+27a²b+27ab²-25a-25b

Step-by-step explanation:

hope it helps you