(1)ay^2-2a^2y+a^3(2)(a-b)^2-4a^2b^2要過程分解因式

(1)ay^2-2a^2y+a^3(2)(a-b)^2-4a^2b^2要過程分解因式

(1)ay^2-2a^2y+a^3
=a(y²;-2ay+a²;)
=a(y-a)²;
(2)(a-b)^2-4a^2b^2
=(a-b+2ab)(a-b-2ab)