Respuesta :

angarvin123

Answer:

3

Step-by-step explanation:

subtract the 3 from both sides

wegnerkolmp2741o

Answer:

add 4 to each side

Step-by-step explanation:

x^2+4x=3

To complete the square, take the coefficient of the x term

4

divide by 2

4/2=2

Then square it

2^2

4

Add 4 to each side

x^2+4x+4=3+4

x^2 +4x+4 =7

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