Respuesta :
if a polynomial has real coefients, if a+bi is a root, then a-bi is also a root
so
8 and i and 6i
since i and 6i is zeores then -i and -6i are also zeroes
remaining zeroes are -i and -6i
so
8 and i and 6i
since i and 6i is zeores then -i and -6i are also zeroes
remaining zeroes are -i and -6i