Respuesta :
2ab² + (-5ab²) - (-6ab²) =
2ab² - 5ab² + 6ab² =
3ab²
The sum of 2ab2 and (-5ab2) is the same as the sum of (-6ab2) and 3ab²
2ab² - 5ab² + 6ab² =
3ab²
The sum of 2ab2 and (-5ab2) is the same as the sum of (-6ab2) and 3ab²