Multiple choice

Which of the following equations has the sum of its roots as 3?

  1. $2x^2 + 3x + 6 = 0$
  2. $x^2 - 3x + 3 = 0$
  3. $\sqrt{2}x^2+\dfrac{3}{\sqrt{2}}x =1 0$
  4. $3x^2+ 3x + 3 = 0$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sum of roots for ax^2+bx+c=0 is -b/a. For B: -(-3)/1 = 3.

AI explanation

For a quadratic equation of the form ax^2 + bx + c = 0, the sum of the roots is given by the formula -b divided by a. Applying this to the equation x^2 - 3x + 3 = 0, the sum of its roots is -(-3) divided by 1, which equals 3.

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