Multiple choice

2x² - 4x - 6 = 0 ,What are the roots of the equation?

  1. x = 3, -1

  2. x = -3, 1

  3. x = 1, -3

  4. x = -1, 3

  5. None of these

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A Correct answer
AI explanation

Using the factoring method, we first divide the equation 2x^2 - 4x - 6 = 0 by 2 to get x^2 - 2x - 3 = 0. We then find two numbers that multiply to -3 and add to -2, which are -3 and 1. This gives the factors (x - 3)(x + 1) = 0, so the roots are x = 3 and x = -1.