Contact us
Choose a category below so we can get back to you as quickly as possible.
X-1/X+2=X-3/X+4 クロス乗算: (x+2)(x-3)=(x-1)(x+4) x^2-x-6=x^2+3x-4 4x=-2 x=-1/2. X=-1/2は方程式の根である。
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.