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B This equation has two real solutions, because when taking the square root of 43, there is a positive and a negative solution for ±√43.
When taking the square root of both sides of the equation (x + 3)^2 = 43, the result is x + 3 = ±√43. This gives two possible solutions for x: x = -3 + √43 and x = -3 - √43. Therefore, the equation has two real solutions.