Question

For what real values of x is the expression –x2
+ 4x – 8 negative?

Answer 1

Step-by-step explanation:

For x in R, the expression (x^2+2x+c),(x^2+ 4x+3c) can take all real values if c in. ... 8.0 K LIKES. 159.5 K VIEWS. Given that, for all real x, the ...