Question

56 x 64 x 73/ 98

Answer 1

5+6i

Answer 2

I think

Answer 3

If you are told that the polynomial has rational coefficients, then any complex roots come in complex conjugate pairs.
Since you are given that 7 + 2i is a root, then its complec conjugate, 7 - 2i, is also a root

Answer 4

Hope I helped

Answer 5

thanks for explaining it out to me

Answer 6

Welcome