What are the solutions of the quadratic equation (x + 3)2 = 49? A. O x = 2 and x = - 10 B. O.x = 4 and x = -10 C. O x=-2 and x = -16 D. O x = 40 and x = -58​

B. x = 4 and x = -10

Step-by-step explanation:

First, expand the equation

(x + 3)² = 49

(x + 3)(x + 3) = 49

x² + 6x + 9 = 49

Subtract 49 from both sides

x² + 6x -40 = 0

Factor

(x + 10)(x - 4) = 0

Solve

x + 10 = 0

x = -10

x - 4 = 0

x = 4

So, the correct answer is B. x = 4 and x = -10

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step-by-step explanation: