How is everyone this November morning? I just need some help today with some polynomial problems that are tricky for me.

what are the roots/zeros of 2x^2+4x+7?

(Hint: this one will not factor, so you will have to use something elseā¦)

*Please and thank you! 0^>*

PhoenixForever
Nov 14, 2018

#1**+2 **

If the polynomial (quadratic) will not factor, then use the Quadratic formula

\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)

We will have to assume 2x^2+4x+7 = 0 SInce you are looking for roots

For this a = 2 b = 4 c = 7

-4 +-sqrt(-40) / 4 = -1 +- 1/2 i sqrt (10)

ElectricPavlov
Nov 14, 2018