The given quadratic equation is
![2 {x}^{2} - x - 3 = 0](https://tex.z-dn.net/?f=2%20%7Bx%7D%5E%7B2%7D%20%20-%20x%20-%203%20%3D%200)
comparing with
![{ax}^{2} + bx + c = 0](https://tex.z-dn.net/?f=%20%7Bax%7D%5E%7B2%7D%20%20%2B%20bx%20%2B%20c%20%3D%200)
We get ,
![a = 2 \\ b = - 1 \\ c = - 3](https://tex.z-dn.net/?f=a%20%3D%202%20%5C%5C%20b%20%3D%20%20-%201%20%5C%5C%20c%20%3D%20%20-%203)
formula :
![D = {b}^{2} - 4ac \\ \\ D = {( - 1)}^{2} - 4 \times 2 \times ( - 3) \\ \\ D = 1 - ( - 24) \\ \\D = 1 + 24 \\ \\D = 25.](https://tex.z-dn.net/?f=D%20%3D%20%20%7Bb%7D%5E%7B2%7D%20%20-%204ac%20%5C%5C%20%20%5C%5C%20D%20%3D%20%20%7B%28%20-%201%29%7D%5E%7B2%7D%20%20-%204%20%5Ctimes%202%20%5Ctimes%20%28%20-%203%29%20%5C%5C%20%20%5C%5C%20D%20%3D%201%20-%20%28%20-%2024%29%20%5C%5C%20%20%5C%5CD%20%20%3D%201%20%2B%2024%20%5C%5C%20%20%5C%5CD%20%20%3D%2025.)
Discriminant of given quadratic equation is 25 .
option (B) 25 ✔
Answer:
a^2+6a+9
Step-by-step explanation:
Answer:
-5-2
Step-by-step explanation:
10*+8=8
-5-2
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Answer:
the 1st one
Step-by-step explanation:
I passes it in the quiz