The number of real roots of equation LNX + 2x-8 = 0 is () A. 0B. 1C. 2D. 3

The number of real roots of equation LNX + 2x-8 = 0 is () A. 0B. 1C. 2D. 3

The original equation can be changed into LNX = - 2x + 8, then the root of the original equation is the abscissa of the intersection of the image of the function y = LNX and the function y = - 2x + 8, and the image of these two functions can be made in the same coordinate system: from the image, we can see that there is only one intersection, so the original equation has only one real root