Why does 5x²+2x+1=0 have no real solutions?

[jvignacio]

Homework Statement

5x^2+2x+1=0

Homework Equations

-b +- sqrt{b^2 +- 4ac}

The Attempt at a Solution

once applied the quadratic formula, i got a minus under the discrimant which means i received an error. any other recommendations on how to solve this baby?

 

[Defennder]

There's no error here if you copied the question correctly. The roots of this equation are complex.

 

[statdad]

The roots of this equation are complex, but you should be aware that the Quadratic Formula is not the one you typed: it is

$$\frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$

The version you have could cause you massive grief in the future.

 

[jvignacio]

yes sorry i ment that formula. So this equation has no roots(complex)

 

[HallsofIvy]

It has no real number roots which was the question (I think) you intended to pose.