Question

Factor the polynomial x^9-y^12

Answer 1

(X^3)^3- (y^4)^3

Use formula: (a-b) (a^2+ab +b^2)

User power rule: (x^a)^b=x^ab
(X^3_4^4)(x^6+x^3y^4+ (y^4)^2)

(X^3-y^4)(x^6+x^3y^4+y^8)