两题因式分解:(1)a²-2a(b+c)+(b+c)²(2)(x²-5)²+8(x²-5)+16

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两题因式分解:(1)a²-2a(b+c)+(b+c)²(2)(x²-5)²+8(x²-5)+16两题因式分解:(1)a²-2a(b+c)+(

两题因式分解:(1)a²-2a(b+c)+(b+c)²(2)(x²-5)²+8(x²-5)+16
两题因式分解:
(1)a²-2a(b+c)+(b+c)²
(2)(x²-5)²+8(x²-5)+16

两题因式分解:(1)a²-2a(b+c)+(b+c)²(2)(x²-5)²+8(x²-5)+16
(1)a²-2a(b+c)+(b+c)²
=(a-b-c)²
(2)(x²-5)²+8(x²-5)+16
=(x²-5+4)²
=(x²-1)²
=(x+1)²(x-1)²