Question

Find the square roots of -3+4i

Answer 1

square roots ?

Answer 2

5.73205081 i according to google :/

Answer 3

i do know if you convert to polar form,
r = 5(radius),theta =126.87°(angle)

Answer 4

I haven't learned polar form yet... It's using the (a^2-b^2)+2abi method.

Answer 5

How do you factor a^4+3a^2+4=0?

Answer 6

i think you cannot factor it ?! (not include using the quadratic formula)

Answer 7

with that you get four roots then

Answer 8

When it's a^4-3a^2-4=0, it factors as
(a^2-4)(a^2+1)..?

Answer 9

@order (a^2-a+2) (a^2+a+2) = 0, is a = -3+j4 ?

Answer 10

Not sure... does this have to do with my question?

Answer 11

yep, yep

Answer 12

(1 + 2i)^2 = -3+4i

Answer 13

solve that system to get a and b...