carleedmcintosh carleedmcintosh

09-05-2020
Mathematics

contestada

Rewrite the function by completing the square.
f(x) = x2 - 8x - 2
f(x) = (x+
2+

Respuesta :

jimrgrant1 jimrgrant1

09-05-2020

Answer:

f(x) = (x - 4)² - 18

Step-by-step explanation:

Given

f(x) = x² - 8x - 2

To complete the square

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

f(x) = x² + 2(- 4)x + 16 - 16 - 2

= (x - 4)² - 18

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