Multiply out by FOILing and collect like terms:
 (x + 3)(x + 5) – (x – 4)(x – 2) = 0
 x2 + 8x + 15 – (x2 – 6x + 8) = 0
 x2 + 8x +15 – x2 + 6x – 8 = 0
 14x + 7 = 0
 14x = -7
 x = -1/2, which is answer choice B.

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