Multiple choice

Which of the following is a root of the equation $2x^{2}-5x-3=0$?

  1. $x = 3$
  2. $x = 4$
  3. $x = 1$
  4. $x = -3$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Substitute x=3 into the equation: 2(3)^2 - 5(3) - 3 = 2(9) - 15 - 3 = 18 - 18 = 0. Thus, x=3 is a root.

AI explanation

Substitute x equals 3 into the equation 2x squared minus 5x minus 3 to get 2 times 9 minus 15 minus 3. This simplifies to 18 minus 18, which equals 0. Therefore, x equals 3 is a root of the equation.