Factorise a raise to 9 b raise to 9
solution:-
=a^9 - b^9
=(a^3)^3 - (b^3)^3
we know that
a^3- b^3 = (a-b) (a^2 +ab +b^2)
using this formula
(a^3 - b^3) {(a^3)^2 +a^3b^3+ (b^3)^2)}
(a-b) (a^2 +ab +b^2) (a^6 +a^3b^3+ (b^6) Answer...
See video
Factorise a raise to 9 b raise to 9
solution:-
=a^9 - b^9
=(a^3)^3 - (b^3)^3
we know that
a^3- b^3 = (a-b) (a^2 +ab +b^2)
using this formula
(a^3 - b^3) {(a^3)^2 +a^3b^3+ (b^3)^2)}
(a-b) (a^2 +ab +b^2) (a^6 +a^3b^3+ (b^6) Answer...
See video