Question

factorise 8a cube +27 b cube​

Answer 1

Please mark it branliest

Answer 2

Solution :

__________________

Given that :

_____________

8a³+27b³

=> (2a)³+(3b)³

As we know that :

a³+b³ = (a+b)(a²-ab+b²)

=> 8a³+27b³ = (2a+3b)[ (2a)²-(2a)(3b)+(3b)² ]

=> 8a³+27b³ = (2a+3b)(4a²-6ab+9b²)