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a,b,c are real numbers in the polynomial p(z)=2z^4+az^3+bz^2+cz+5. If two roots of the equation p(z)=0 are 2 and i, then the value of a is

Answer» a,b,c are real numbers in the polynomial p(z)=2z^4+az^3+bz^2+cz+5. If two roots of the equation p(z)=0 are 2 and i, then the value of a is


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