noreenkhan060105 noreenkhan060105

28-01-2021
Mathematics

contestada

express x^2 -8x+5 in the form (x-a)^2 -b where a and b are integers

Respuesta :

jimrgrant1 jimrgrant1

28-01-2021

Answer:

(x - 4)² - 11

Step-by-step explanation:

Given

x² - 8x + 5

Using the method of completing the square

add/subtract ( half the coefficient of the x- term )² to x² - 8x

= x² + 2(- 4)x + 16 - 16 + 5

= (x - 4)² - 11

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