Jika p ×25=15×15 nilai p adalah

25p = 15 x 15
25p = 5 x 3 x 5 x 3
25p = 5 x 5 x 3 x 3
25p = 25 x 9
p = 9

P x 25 = 15×15
p x25 = 225
p = 225/25
p = 9