分解因式8a³+8a²+2a 4m²-9n²-4m+1 x²(y-z)+81(z-y) 9m²-6m+2n-n²

问题描述:

分解因式8a³+8a²+2a 4m²-9n²-4m+1 x²(y-z)+81(z-y) 9m²-6m+2n-n²

8a³+8a²+2a =2a(4a²+4a+1)=2a(2a+1)²4m²-9n²-4m+1 =4m²-4m+1-9n²=(2m-1)²-9n²=(2m-1+3n)(2m-1-3n)x²(y-z)+81(z-y) =(y-z)(x²-81)=(y-z)(x+9)(x-9)...