Gta signal jammers glitch

so i was doing the signal jammers thing in gta and after i destroyed 20 i got my saving the point i was at in my video, the next day, i was only and 10, i assumed this was a visual glitch but after i finished the vid, i was only a 40, i went black and checked out the first 20 and they were not there, is this some glitch? i’ve tried restart

i don’t see a picture

the easiest way to do these would be to solve the equations. if you can solve the equation than you can solve these problems.

answers

\3. yes the presentation (i.e. odd numbers being written as differences of two squares) is possible for all odd natural number however the presentation may not be unique. for example,  57=112−82=292−28257=112−82=292−282.

\4. 2 can't be written as a difference of two squares because 4-1=3 and 1-1=0 and the difference of squares grows to integers larger that 3.

can i get some in proving questions 1 and 2?