Respuesta :

mhanifa

Answer:

  • 3a, -3a², - 6

Step-by-step explanation:

The left side of the equation:

  • a² - 5a + 1

The right side:

  • 4a² - 2a + 7

The difference:

  • - 3a² + 3a - 6

The equation is:

  • (a² + 3a + 1) - (-3a² + 5a - 6) = 4a² - 2a + 7

The blanks:

  • 3a, -3a², - 6