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Mathematics 15 Online
zarkam21:

?

zarkam21:

1 attachment
satellite73:

yikes

satellite73:

you can plug in all those numbers i guess and see which ones give zeros, maybe best to cheat

satellite73:

look under "roots" it tells you the zeros http://www.wolframalpha.com/input/?i=2x%5E4-x%5E3-42x%5E2%2B16x%2B160

zarkam21:

Oh D!

zarkam21:

Yay thank you

satellite73:

i don't see choices but maybe D it is 2 in any case

satellite73:

oh yeah, D yw

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