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Find all real number solutions for the equation a^2 - 9 = 0. Solutions (separate by commas): a =

Find all real number solutions for the equation a^2 - 9 = 0. Solutions (separate by commas): a =

Answer

The equation is a quadratic equation: a^2 - 9 = 0.

We can factor it as (a - 3)(a + 3) = 0.

Setting each factor equal to zero gives the solutions:

  1. a - 3 = 0 → a = 3
  2. a + 3 = 0 → a = -3

Therefore, the real number solutions are: 3, -3.

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