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20-05-2020
Mathematics

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Rewrite the equation by completing the square.
x² + 4x = 0

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20-05-2020

Answer:

(x+2)^2 = 4

Step-by-step explanation:

x² + 4x = 0

Take the coefficient of the x term

4

Divide by 2

4/2 =2

Square it

2^2 =4

Add this to each side

x^2+4x+4 = 0+4

(x+4/2)^2 = 4

(x+2)^2 = 4

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