truunaeligion36 truunaeligion36

22-10-2019
Mathematics

contestada

rewrite the function by completing the square f(x)=x^2-4x-26

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jimrgrant1 jimrgrant1

22-10-2019

Answer:

(x - 2)² - 30

Step-by-step explanation:

To complete the square

add/subtract ( half the coefficient of the x- term )² to x² - 4x

f(x) = x² + 2(- 2)x + 4 - 4 - 26 = (x - 2)² - 30

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