# Positive values of X?

by Mo
Tags: positive, values
 P: 82 Again , its another case of "dont understand the question" (how the hell am i ever going to get the answer ) Anway, on with the question (it seems simple...): "By completing the square, show that $$x^2+2x+5$$ is positive for all real values of $$x$$ " I have completed the square, my answer: $$(x+1)^2+4$$ 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