2.5+4.159*745-20.365478
=2.5+118455-20.365478
=118457.5-20.365478
=118437.134522
tích nha
2.5+4.159x745-20.365478
=2.5+3098.455-20.365478
=3100.955-20.365478
=3080.5896
ai k mình mình k lại
2.5 + 4,159 x 745- 20,365478
=2,5+118455 - 20,365478
=118457,5 - 20,365478
=118437,134522
đáp số : 118437,134522
2,5+4,159x745-20,365478=2,5+3098,455-20,365478=3100,955-20,365478=3080,589522