SOLUTION: Given 2x^2+bx+8, find the values of b so there are no real solutions to the quadratic.

Question 1002188: Given 2x^2+bx+8, find the values of b so there are no real solutions to the quadratic.
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!

Given , find the values of so there are no real solutions to the quadratic
use discriminant
recall:
=>two real solutions
=>one (repeated) real solution
=>two complex solutions
so you need that will make
in your case , ,,
so,

let's check if

->no real solutions,we have two complex solutions

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