Question

Help!
What is the polynomial function of lowest degree with lead coefficient 1 and roots i, –2, and 2?

f(x)=x^3-x^2-4x+4
f(x)=x^4-3x^2-4
f(x)=x^4+3x^2-4
f(x)=x^3+x^2-4x-4

Answer 1

Well , for the first one...

x=2 or x=-2 or x=1

is that i supposed to be a one?

Answer 2

No, it is supposed to be i, the imaginary number

Answer 3

well it has 3 roots, so it is a 3rd degree polynomial

Answer 4

so already A or D?

Answer 5

The first one has roots, 2 , -2, 1
The Last one has roots 2 , -2 , -1

Answer 6

oh i see, i wrote it wrong

Answer 7

The second one has the roots: 2, -2, +i , -i

Answer 8

The last one or the second one?

Answer 9

1) x=2, -2, 1
2) x= 2, -2, +i, -i
3) x = +1, -1, +2i, -2i
4) x = 2, -2, -1

Answer 10

so b is the correct answer

Answer 11

yea