info and security please help

4. For each of the following x and y, express the ged{x,y) as a linear combination of x and y using extended Euclid algorithm. Detail your steps by filling the table in edended Euclid algorithm. (12 points, 4 points each) (a) * = 23 and y=97 (b) * = 987 and y = 154 (c) x = 656 and y = 999