59^2-41^2 дробь 59^2+2*59*41+41*2

59^2-41^2 дробь 59^2+2*59*41+41*2=;1) 59^2 = 3481;2) 41^2 = 1681;3) 3481 - 1681/3481 + 2*59*41 + 41*2 =;4) 3481 - 1681/3481 + 4838 + 82 = ;5) 3481 - 1681/3481 + 4920 =;6) 3481 - 1681/ 3481 = 3481·3481/ 3481 - 1681 /3481 = 12117361 /3481 - 1681/ 3481 = 12117361 - 1681/ 3481 = 12115680/ 3481 = 1800 + 3480·3481/ 3481 = 3480 1800 /3481 ;7) 3480 1800/3481 + 4920 = 8400 1800/3481.