Question

Using the given zero, find one other zero of f(x).

4 - 5i is a zero of f(x).= x4 - 8x^3 + 42x^2 - 8x + 41.

Answer 1

Remember that all complex roots come in the form of complex conjugates.

Answer 2

i think it should either be 1-i or 4+5i

Answer 3

it is 4+5i

Answer 4

remember that the complex conjugate of:
\[a + bi = a- bi\]

Answer 5

ohh ok !!

Answer 6

so if one root is 4+5i, another is 4-5i

Answer 7

and vice versa

Answer 8

right ya i get that part

Answer 9

Ok, good