Multiple choice

Calculate the zeroes of the quadratic equation $(x+3)^2=49$.

  1. $x=-10, x=4$
  2. $x=-10, x=10$
  3. $x=-4, x=10$
  4. $x=3\pm 2\sqrt{3}$
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A Correct answer
Explanation

(x+3)^2 = 49 implies x+3 = 7 or x+3 = -7. Thus x = 4 or x = -10.

AI explanation

Taking the square root of both sides of the equation gives x + 3 = 7 or x + 3 = -7. Solving the first equation gives x = 4, and solving the second gives x = -10.

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