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Mathematics 6 Online
OpenStudy (anonymous):

factor x^3+5x^2+4x=20

OpenStudy (anonymous):

I KNOW IT IS SOMETHING wait oh yeah its pizza time!!

OpenStudy (mertsj):

Subtract 20 from both sides first.

OpenStudy (mertsj):

Do you know the rational roots theorem?

OpenStudy (anonymous):

the = is supossed to be a +

OpenStudy (mertsj):

The possible rational roots are: \[\pm1, \pm2,\pm4, \pm5,\pm10, \pm20 \]

OpenStudy (earthcitizen):

\[x (x+1) (x+4)=20\]... y 12 roots ? @Mertsj boss

OpenStudy (mertsj):

So use synthetic division to see if any of those is actually a root.

OpenStudy (anonymous):

i now understand

OpenStudy (anonymous):

thank you very much

OpenStudy (mertsj):

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