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

User Nverinaud
by
8.3k points

1 Answer

5 votes

Answer:

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

Explanation:

x² + 4x + 4 = 4 + 4

(x + 2)² = 8

x + 2 = +/-√8

x = -2 +/- √8

User Nahuel Fouilleul
by
8.0k points
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