Question

complex numbers

Answer 1

WELCOME TO OPENSTUDY!....(:

Answer 2

Are you trying to ask a question??

Answer 3

yes

Answer 4

what is your question???

Answer 5

The complex number 1 + (√
2)i is denoted by u. The polynomial x
4 + x
2 + 2x + 6 is denoted by p(x).
(i) Showing your working, verify that u is a root of the equation p(x) = 0, and write down a second
complex root of the equation. [4]
(ii) Find the other two roots of the equation p(x) = 0. [6]

Answer 6

what is the polynomial??
your question is in bits....can you put them together and tell me what the polynomial is?

Answer 7

x^4+x^2+2x+6

Answer 8

The complex number 1 + (√2)i is denoted by u. The polynomial x
4 +x2 + 2x + 6 is denoted by p(x).
(i) Showing your working, verify that u is a root of the equation p(x) = 0, and write down a second
complex root of the equation. [4]
(ii) Find the other two roots of the equation p(x) = 0. [6]

Answer 9

plug in the value of u into p(x)....if you get zero, you have proven its a root of p(x)=0...

Answer 10

are you there??

Answer 11

yes

Answer 12

do you understand me??