I think this is factorials
so an example would b....... 1*2*3*4*5.... ect
hope this helps
Here’s the answer and each step I took to solve it. With the example I made on the side just continue to repeat that for each one to get the answers. You just replace that one number for the X to take the place for the next X value as you go down the table solving them.
The possible answers are 15,5 and 10,10
The correct answer is not up there. its -125a^7
i would say the answer is 17 because i used the calculator