因式分解,(x²-5)²+8(x²-5)+16=
问题描述:
因式分解,(x²-5)²+8(x²-5)+16=
答
(x²-5)²+8(x²-5)+16
=(x²-5+4)²
=(x²-1)²
=(x+1)²(x-1)²