Multiple choice

Let $\alpha$ and $\beta$ be the roots of the equation ${ \left| x \right| }^{ 2 }+\left| x \right| -6=0$, then the sum and product of both the roots are respectively-

  1. $0$ and $-4$
  2. $0$ and $-9$
  3. $-5$ and $6$
  4. $5$ and $6$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Let |x| = y. y^2 + y - 6 = 0 => (y+3)(y-2) = 0. Since |x| >= 0, y = 2. So |x| = 2, meaning x = 2 or x = -2. Sum = 2 + (-2) = 0. Product = 2 * (-2) = -4.

AI explanation

Factoring the equation |x|^2 + |x| - 6 = 0 gives (|x| + 3)(|x| - 2) = 0, which means |x| must be either 2 or -3. Since the absolute value of x cannot be negative, |x| = 2, yielding the two roots x = 2 and x = -2. The sum of these roots is 2 + (-2) = 0, and their product is 2 * -2 = -4.