Respuesta :

Answer:

Step-by-step explanation:

Complete the square

[tex]x^{2}[/tex] + 2x - 13 = 0

[tex]x^{2}[/tex] + 2x        = 13

[tex]x^{2}[/tex] + 2x + [tex]1^{2}[/tex] = 13 +1 (take 1/2 of the b term , the 2 )

[tex]x^{2}[/tex] + 2x + 1 = 14

(x +1)^2 = 14

mhanifa

Answer:

Complete the square:

  • x² + 2x - 13 = 0
  • x² + 2x + 1  - 14 = 0
  • (x + 1)² - 14 = 0
  • (x + 1)² = 14
  • x + 1 = ± √14
  • x = -1 ± 3.74
  • x =  2.74, x = -4.74