Question

数学因式分解

Answer 1

a²(x-y)²+2a(x-y)³+(x-y)^4
=(x-y)²[a²+2a(x-y)+(x-y)²]
=(x-y)²(a+x-y)²

Answer 2

=(x-y)(x-y)(a+x-y)((a+x-y)用公式法

Answer 3

(x-y)2[a2+2a(x-y)+(x-y)2]
=(x-y)2(a+x-y)2