解方程:(x+1)^4-9(x+1)²+8=0
问题描述:
解方程:(x+1)^4-9(x+1)²+8=0
答
(x+1)^4-9(x+1)²+8=0【(x+1)²-8】[(x+1)²-1]=0(x+1+2√2)(x+1-2√2)(x+1+1)(x+1-1)=0x(x+1+2√2)(x+1-2√2)(x+2)=0x1=0x2=-1-2√2x3=-1+2√2x4=-2如果本题有什么不明白可以追问,请及时点击右下角...