Respuesta :

Veridian

Answer: x = -1

Step-by-step explanation:

Add -6x to both sides to get: 3x^2 + 6x + 3 = 0

Factor out 3: 3(x^2 + 2x + 1) = 0

Factor inside the parentheses: 3(x + 1)(x + 1) = 0

Zero Product Property: x + 1 = 0

Solve: x = -1

retirEEd

Answer:

Step-by-step explanation:

3x² + 3 = -6x

3x² + 6x + 3 = -6x + 6x

3x² + 6x + 3 = 0                    solve for x by factoring but first divided by 3

x² + 2x + 1 = 0

(x + 1)(x + 1) = 0

(x + 1)² = 0

(x + 1) = 0     when x = -1

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