Wednesday, May 22, 2013

find all the zeros, real, and non real, of the polynomial p(x) = x^3 + 7x

%0D%0Ax%5E3+%2B+7x=x%28x%5E2%2B7%29=x%28x%2Bi%2Asqrt%287%29%29%28x-i%2Asqrt%287%29%29%0D%0A 

zeros 0,i%2Asqrt%287%29,-i%2Asqrt%287%29 

:)
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