x^2+2x-1/3=0x^2+2x+1-4/3=0(x+1)^2=4/3x+1=±(2√3)/3x=-1±(2√3)/3
(x+1)^2=4/3x=-1±2√3/3
x²+2x-1/3=0x²+2x+1-4/3=0﹙x+1﹚²=4/3 x+1=±2√3/3∴x=﹣1±2√3/3
X^2+2X-1/3=03X^2+6X-1=0∵Δ=6X6+3X4>0∴X=(-6+/-√48)/6X1=-1+(2√3/3)X2=-1-(2√3/3)