Multiple choice If one root of the equations $2x^{2}+ax+3=0$ is 1 find the value of a. = -4 = -5 = -3 = -1 Reveal answer Fill a bubble to check yourself B Correct answer Explanation Since 1 is a root, substitute x = 1 into 2x^2 + ax + 3 = 0. This gives 2 + a + 3 = 0, so a = -5.