Answer:
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.
