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Mathematics 23 Online
OpenStudy (anonymous):

Determine whether -3 is a root of x^3+3x^2+x+1=0 PLEASE HELP! >.<

OpenStudy (math&ing001):

You just need to plug in -3 in the equation like this : (-3)^3+3*(-3)^2+(-3)+1 and see if it's equal to 0.

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