Product rule is

so if ou have

not sure what yo mean by positive exponents, just add them
Answer:
i think it may be 21.98 but i dunno
Step-by-step explanation:
First move the -2 to the other side
Since it is multiplying the brackets we do the opposite and divide 13 by -2
We now have n+3=6.5
Now to get n as the subject we do the opposite of plus 3 so we minus 3 from the other side
So n=3.5
Answer: 6 edges
The plane passes through the 6 blue edges that I have marked in the attached image below. The 6 red points represent the vertices of the hexagon that forms. At each red point is where the plane crosses an edge of the original cube.