Again , its another case of "dont understand the question" (how the hell am i ever going to get the answer :rofl: )(adsbygoogle = window.adsbygoogle || []).push({});

Anway, on with the question (it seems simple...):

"By completing the square, show that [tex]x^2+2x+5[/tex] is positive for all real values of [tex]x[/tex] "

I have completed the square, my answer:

[tex](x+1)^2+4[/tex]

But i dont know what to do next.(the question is in the section of the "discriminant" (b^2-4ac = or > or < 0) by the way )

I think what im having a hard time with is "real values of x" .What does hat mean?

I would be gratefull for any help, at all!

Regards,

Mo

**Physics Forums - The Fusion of Science and Community**

# Positive values of X?

Have something to add?

- Similar discussions for: Positive values of X?

Loading...

**Physics Forums - The Fusion of Science and Community**