It is known that one root of the equation 2x2 + 5x + P-3 = 0 about X is - 4. Find another root of the equation and the value of P

It is known that one root of the equation 2x2 + 5x + P-3 = 0 about X is - 4. Find another root of the equation and the value of P

Let the other root of the equation 2x2 + 5x + P-3 = 0 of X be X2, then - 4 + x2 = - 52, and the solution is x2 = 32; ∵ one root of the equation 2x2 + 5x + P-3 = 0 of X is - 4, ∵ 2 × (- 4) 2 + 5 × (- 4) + P-3 = 0, that is, 9 + P = 0, and the solution is p = - 9