Respuesta :

Answer:

6x² - 3x + 7

Step-by-step explanation:

42x³/7x - 21x²/7x + 49x/7x

6x² - 3x + 7

Answer: 6x2-3x+7

Step-by-step explanation:

42x3/7x is 6x2

-21x2/7x is -3x

49x/7x is 7