Παρατηρείστε τους παρακάτω αριθμούς:
81 = (8+1)^2 = 9^2 = (10^1 x8)+1 = 81
9801 = (98+01)^2 = 99^2 = 9801 = 10^2x98+01 = 9801
3025 = (30+25)^2 = 55^2 = 3025
2025 = (20+25)^2 = 45^2 = 2025
88209 = (88+209)^2 = 297^2 = 88209
81 = (8+1)^2 = 9^2 = (10^1 x8)+1 = 81
9801 = (98+01)^2 = 99^2 = 9801 = 10^2x98+01 = 9801
3025 = (30+25)^2 = 55^2 = 3025
2025 = (20+25)^2 = 45^2 = 2025
88209 = (88+209)^2 = 297^2 = 88209
Υπάρχουν άλλοι τέτοιοι αριθμοί που να έχουν αυτήν την ιδιότητα;
Ένας ακόμη
ΑπάντησηΔιαγραφή494209=(494+209)^2=703^2