解:(1)x²+2(√3+1)x+4+2√3=4
(x+√3+1)²=4
x+√3+1=±2
x1=1-√3,x2=-3-√3
(2)x²-(2m+1)x+m²+m+1/4=m²+1/4
(x-m-1/2)²=m²+1/4
x-m-1/2=±√(m²+1/4)
x1=√(m²+1/4)+m+1/2,x2=m+1/2-√(m²+1/4)
解答如图: 晕,图没加进去~
链接个地址好了
http://hi.baidu.com/%C7%E7%CC%EC%D0%A1pig00/album/item/427bb0d2d47fd966960a167d.html#
(1)解:X2+2(√3+1)x+2√3+4=4
X2+2(√3+1)x+(√3+1)2=4 (x+√3+1)2=4 x1=1-√3 或 x2=-3-√3
(2)解:x2-(2m+1)x+m2+m+1/4=m2+1/4
{x-(m+1/2)}2=m2+1/4
x1=√(m2+1/4)+m+1/2或x2=m+1/2-√(m2+1/4)
有个符号不懂什么意思"^"