Given the equation 2x^{2} - 5x + 7 = 0. What is the discriminant?

Describe the roots and explain your reasoning.

Guest Feb 4, 2019

edited by
Guest
Feb 4, 2019

#1**+2 **

(b^2-4ac)= (25-4(2)(7) ) = (25-56) = (-31)

There will be two imaginary roots due to the NEGATIVE discriminant

ElectricPavlov Feb 4, 2019

#1**+2 **

Best Answer

(b^2-4ac)= (25-4(2)(7) ) = (25-56) = (-31)

There will be two imaginary roots due to the NEGATIVE discriminant

ElectricPavlov Feb 4, 2019

#2**-1 **

The discriminant formula is \(b^2-4ac\) . Substituting...

\((-5)^2-4(7)(2)=25-56=-31\). The discriminant is -31.

Since the discriminant is negative, it has complex roots.

You are very welcome!

:P

CoolStuffYT Feb 4, 2019