Question

write the suitable identity and factorise
8 x3 + 27 y3 + 36 x ² y + 54 ky ²​

Answer 1

Answer:

8x  

3

−27y  

3

−36x  

2

y+54xy  

2

 

=(2x)  

3

−(3y)  

3

−3×(2x)  

2

×3y+3×2x×(3y)  

2

 

Using,(a−b)  

3

=a  

3

−b  

3

−3a  

2

b+3ab  

2

 

=(2x−3y)  

3

 

=(2x−3y)(2x−3y)(2x−3y)

Step-by-step explanation: