Can someone me with this. show your work .
-2x² - 5x
if x = -4

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Hello, i need compare km^2 and km. what's difference in this?

Nellie is analyzing a quadratic function f(x) and a linear function g(x). will they intersect? f(x) g(x) graph of the function f of x equals one half times x squared, plus 2 x g(x) 1 5 2 10 3 15