a³-4a.(x²+y²)²-4x²y² (a+b)²-10a-10b+25a³-4a.(x²+y²)²-4x²y² (a+b)²-10a-10b+25 分解因式

a³-4a.(x²+y²)²-4x²y² (a+b)²-10a-10b+25a³-4a.(x²+y²)²-4x²y² (a+b)²-10a-10b+25 分解因式
a³-4a.(x²+y²)²-4x²y² (a+b)²-10a-10b+25
a³-4a.(x²+y²)²-4x²y² (a+b)²-10a-10b+25 分解因式

a³-4a.(x²+y²)²-4x²y² (a+b)²-10a-10b+25a³-4a.(x²+y²)²-4x²y² (a+b)²-10a-10b+25 分解因式
1.A(A平方-4)=A(A+2)(A-2) 2.(（X平方+Y平方）+2XY)乘以(（X平方+Y平方）-2XY) 3.(（A+B）-5)的平方