SOLUTION: For the following equation, state the value of the discriminant and then describe the nature of the solutions. -18x^2-7x-10=0 What is the value of the discriminant? Which one

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons -> SOLUTION: For the following equation, state the value of the discriminant and then describe the nature of the solutions. -18x^2-7x-10=0 What is the value of the discriminant? Which one      Log On


   

Question 344948: For the following equation, state the value of the discriminant and then describe the nature of the solutions.
-18x^2-7x-10=0
What is the value of the discriminant?
Which one of the statements below is correct?
a. The equation has two imaginary solutions.
b. The equation has two real solutions.
c. The equation has one real solution?
Thanks for your help!
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
D=b%5E2-4ac
D=%28-7%29%5E2-4%28-18%29%28-10%29
D=49-720
D=-671
.
.
.
Since D%3C0, the solutions are complex.
a) is the correct answer.