第1个回答 2011-07-19
2x+1>=0, x+2>=0, x>=-1/2
√(2x+1)=2√3-√(x+2)
2x+1=12+(x+2)-4√3(x+2)
4√3(x+2)=13-x >=0, x<=13
48(x+2)=169+x^2-26x
x^2-74x+73=0
(x-73)(x-1)=0
x=1
3x-18>=0, x>=6,
x-10>=0,. x>=10
2x-8>=0, x>=4
√(3x-18) -√(2x-8)=√(x-10)
√(3x-18)=√(2x-8)+√(x-10)
(3x-18)=(2x-8)+(x-10)+2√(2x-8)(x-10)
(2x-8)(x-10)=0
x=10