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OpenStudy (anonymous):
solve for the variable x when 4x^3+9x^2-30x-8=0
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OpenStudy (jdoe0001):
have you done the "rational root test" yet?
OpenStudy (jdoe0001):
do you know how .... to do synthetic division?
OpenStudy (jdoe0001):
... well, you at least would need both to get "x" in this case http://www.youtube.com/watch?v=GTx-rXTQg1o http://www.youtube.com/watch?v=bZoMz1Cy1T4
OpenStudy (anonymous):
\[4 x^3+9 x^2-30 x-8=(x-2) (x+4) (4 x+1) \]
OpenStudy (anonymous):
can you show how you got those answers
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