The equation has only one positive real root α.Find the integer n such that n the equation:X乘以 e的X次方 加上2X 减7 等于0

问题描述:

The equation has only one positive real root α.Find the integer n such that n the equation:X乘以 e的X次方 加上2X 减7 等于0

该方程有唯一的正解 α .请找出一个整数使得n n=1
事实上该方程的正解 α 的范围正是1