Multiple choice

Number of roots of a quadratic equation are:

  1. $1$
  2. $2$
  3. $3$

  4. None
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B Correct answer
Explanation

A quadratic equation is of the form ax^2 + bx + c = 0, which by the Fundamental Theorem of Algebra has exactly two roots (counting multiplicity).

AI explanation

By the fundamental theorem of algebra, the number of roots of a polynomial equation equals its highest degree. Because a quadratic equation is a polynomial of degree 2, it always has exactly two roots. These roots can be real or complex, and equal or unequal.

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