Respuesta :

Solution:

Note that:

  • Given expression: (x² + 4x) − (x² + 6x − 3)

Remove the brackets

  • (x² + 4x) − (x² + 6x − 3)
  • => x² + 4x - x² - 6x + 3

Combine like terms

  • x²(1 - 1) + x(4 - 6) + 3
  • => x²(0) + x(-2) + 3
  • => -2x + 3