jchulcavasco24 jchulcavasco24

27-03-2020
Mathematics

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Express in completed square form x 2 + 6x + 20

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jimrgrant1 jimrgrant1

27-03-2020

Answer:

(x + 3)² + 11

Step-by-step explanation:

Given

x² + 6x + 20

To complete the square

add/subtract ( half the coefficient of the x- term )² to x² + 6x

x² + 2(3)x + 9 - 9 + 20

= (x + 3)² + 11

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