(x2-5)2+8(x2-5)+16怎么因式分解
问题描述:
(x2-5)2+8(x2-5)+16怎么因式分解
答
(x²-5)²+8(x²-5)+16
=(x²-5+4)²
=(x²-1)²
=(x+1)²(x-1)²
答
(x²-5)²+8(x²-5)+16
=(x²-5+4)²
=(x²-1)²
=(x+1)²(x-1)²
答
(x²-5)²+8(x²-5)+16
设 x²-5=m
原式=m²+8m+4²
=(m+4)²
=(x²-1)²
=[(x-1)(x+1)]²
=(x-1)²(x+1)²