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Mathematics 20 Online
OpenStudy (anonymous):

solve x^3 + 7x^2 + 19x + 13 = 0

sam (.sam.):

Are you allowed to use a scientific calculator on the exam?

OpenStudy (luigi0210):

Do you know about synthetic division?

sam (.sam.):

You can do a trial an error to find one of the roots here, Let f(x)=x^3 + 7x^2 + 19x + 13

sam (.sam.):

Try f(-1)

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