Odpowiedzi

2010-03-30T17:28:53+02:00
2×√9+3×√16=2×3+3×4=6+12=18
4×√25+6×√81= 4×5+6×9=20+54=74
2010-03-30T17:34:14+02:00
2x3+3x4=6+12=18
4x5+6x9=20+54=74