Divide both side by 2 ad you get x=80
No, a bias question is when the speaker is predisposed to accept one particular answer as the right.
Note that if a + bi is a root of P(x) = 0, then a – bi is also a root of P(x) = 0.
In this case, i and 7 + 8i are two roots of P(x) = 0. So –i and 7 – 8i are two additional roots of P(x) = 0.
