Respuesta :

(x-2)^2-25

How?

[tex]\\ \sf\longmapsto (x-2)^2-25[/tex]

[tex]\\ \sf\longmapsto x^2-4x+4-25[/tex]

[tex]\\ \sf\longmapsto x^2-4x-21[/tex]

mhanifa

Answer:

  • a = - 2, b = -25

Step-by-step explanation:

Given quadratic expression:

  • x² - 4x - 21

Convert this into vertex form:

  • x² - 4x + 4 - 25 =
  • (x - 2)² - 25

Compare this with the vertex form to determine the values of a and b:

  • a = - 2
  • b = -25