Glad they didn't have online homework when I was in school; what a pain to type this way.
[tex] x^2 - 5x - 24 = 0[/tex]
We need two numbers that multiply to -24 and add to -5; it doesn't take too long to come up with -8 and 3.
[tex](x-8)(x+3) = 0[/tex]
That's the answer.
