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can you factor it?

yep! thanks!

is it \[ f(x)=x^3-5x^2-2x+24\]

yeah!

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but that doesnt work right?

hmm i can factor this one out give me a second

I think what you meant to do was
\[(x+2)(x-3)(x-4)\]

This gives you the ranges of \[(-\infty, -2) : (-2,3) : (3,4) :( 4,\infty)\]

Then you can just plug a number from each of those ranges in between and just look at the sign.

That'll tell you if it's in the positive range or not

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okay thanks!