Question

x²➕(根号3➕x)²=25？

Answer 1

整理2x^2+2√3*x-22=0
x^2+√3*x-11=0,
判别式=3+4*11=47
得x=(-√3±√47)/2

Answer 2

x^2+(√3+x)^2 =25
x^2+x^2+2√3x + 3 =25
2x^2 +2√3x =22
x^2 +√3x =11
(x+√3/2)^2 = 11 + 3/4
x+√3/2 = √47/2 or -√47/2
x = (-√3+√47)/2 or (-√3-√47)/2