riveramiguel202222 riveramiguel202222

14-08-2020
Mathematics

contestada

Solve
x2+ 4x = 4 for x by completing the square.

Respuesta :

valerieulbrich valerieulbrich

14-08-2020

Answer:

x = -2 +/- √8 or 0.828.... and -4.828....

Step-by-step explanation:

x² + 4x + 4 = 4 + 4

(x + 2)² = 8

x + 2 = +/-√8

x = -2 +/- √8

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