Question

find a quadratic equation with roots-1+4i and -1-4i

Answer 1

multply (x-(-1+4i))*(x+(-1-4i))

Answer 2

\[
(x-(-1+4i))(x-(-1-4i))
\]

Answer 3

Hi @wio :)

Answer 4

Hey

Answer 5

Don't mind me, I'm just doing some work on my case study. Continue with what you're doing here :)

Answer 6

it is rather hard to multiply that out
it might be easier to know that the quadratic with zeros \(a\pm bi\) is \[x^2-2ax+2^2+b^2\]

Answer 7

oops make that
\[x^2-2ax+a^2+b^2\]

Answer 8

No.
Multiply.

Answer 9

Lmao.

Answer 10

This is where Vieta's formula can be applied? :o