Solve x2 + 6x = 7 by completing the square. which is the solution set of the equation? {–7, 1} {1, 7}

Option A. {-7, 1}

Step-by-step explanation:

The given equation is x² + 6x -7 = 0

we have to find the solution set of the given equation by factorizing it.

x² + 6x - 7 = 0

x² + 7x - x - 7 = 0

x(x + 7) - 1(x + 7) = 0

(x -1)(x + 7) = 0

x = 1, -7

Therefore solution set of the equation is (-7, 1).

Option A. is correct.

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step-by-step explanation: