paulrules750 paulrules750

09-04-2018
Mathematics

contestada

complete the square y=x^2+6x+8

Respuesta :

MrsStrong MrsStrong

22-03-2019

Answer:

y = (x+3)² - 1

Step-by-step explanation:

To complete the square take the middle term b and divide by 2. Then square the value.

Here b = 6.

So 6/2 = 3

3² = 9

Add 9 to both sides of the equation.

x² + 6x + 8 = 0

x² + 6x + 9 + 8 = 9

(x+3)² - 1 = y

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