c | c | = | 1537 100 | ( | 1 10 | − | 2 | c | ) | ( | 1 10 | − | 2 | c | ) |
Right side of the equation = | 1537 100 | × | 1 10 | ( | 1 10 | − | 2 | c | ) | − | 1537 100 | × | 2 | c | ( | 1 10 | − | 2 | c | ) |
= | 1537 1000 | ( | 1 10 | − | 2 | c | ) | − | 1537 50 | c | ( | 1 10 | − | 2 | c | ) |
= | 1537 1000 | × | 1 10 | − | 1537 1000 | × | 2 | c | − | 1537 50 | c | ( | 1 10 | − | 2 | c | ) |
= | 1537 10000 | − | 1537 500 | c | − | 1537 50 | c | ( | 1 10 | − | 2 | c | ) |
= | 1537 10000 | − | 1537 500 | c | − | 1537 50 | c | × | 1 10 | + | 1537 50 | c | × | 2 | c |
= | 1537 10000 | − | 1537 500 | c | − | 1537 500 | c | + | 1537 25 | c | c |
= | 1537 10000 | − | 1537 250 | c | + | 1537 25 | c | c |
c | c | = | 1537 10000 | − | 1537 250 | c | + | 1537 25 | c | c |