Contact us
Choose a category below so we can get back to you as quickly as possible.
3x^2+6x-4=0 x^2+2x-4/3=0 x^2+2x+1-1-4/3=0 (x+1)^2-7/3=0 (x+1)^2-21/9=0 (x+1-√21/3)(x+1+√21/3)=0 x=√21/3-1或x=-√21/3-1
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.