For a lens, the magnification (m) is given by the formula:
m = -q/p
where:
m: magnification
q: distance of the image from the lens (image distance)
p: distance of the object from the lens (object distance)
In the case of a real, inverted, and enlarged image formed by the lens, the magnification (m) would have a positive value greater than 1. This indicates that the image is larger than the object and is also inverted (upside down).
The negative sign in the formula represents the inversion of the image. The absolute value of the magnification represents the degree of enlargement. So, when the magnification is positive and greater than 1, it indicates that the image formed by the lens is real, inverted, and enlarged.