Question

Factorise (i) x6 -729y6 (ii) a3 +0.027​

Answer 1

Answer:

Step-by-step explanation:

1) x⁶ - 729y⁶

= ( x² )³ - ( 3²y² )³ is the answer.

2) a³ + 0.027

=( a )³ + (0.3 )³ is the answer.

Answer 2

Answer:

= (x^3)^2-[(3y)3]^2

Step-by-step explanation:

x^6 - 729 y^6 = (x^3)^2 - (3y)^6

= (x^3)^2-[(3y)3]^2

= [(x^3)+(3y)^3] [ (x^3)-(3y)^3]