- #1

||spoon||

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Hey,

When solving polynomials over c that have complex coefficients such as:

z^3+(5i-4)z^2+(3-20i)z+15i

what is the easiest way to find your first factor? My textbook says to use the factor theorem, if you agree is there a quicker way to find a factor than by trialing the constants factors?

Also, for an equation such as:

Z^2+(3-4i)z-12i=0

or:

z^2-(3+2i)z+6i=0

the solutions are z=-3 z=4i and z=3 z=2i respectively. Is it just cpincidence that these solutions "correspond" to the same numerical values as is in the complex coefficient or is there some form of rule for this type of equation to quickly solve them at a glance?

Thanks

Btw i did not know wether this should go into honewirk or not. I chose not because it isnr homework and i can solve these with ease anyway lol. Just curious about different methods and speed :), cheers

-||spoon||

When solving polynomials over c that have complex coefficients such as:

z^3+(5i-4)z^2+(3-20i)z+15i

what is the easiest way to find your first factor? My textbook says to use the factor theorem, if you agree is there a quicker way to find a factor than by trialing the constants factors?

Also, for an equation such as:

Z^2+(3-4i)z-12i=0

or:

z^2-(3+2i)z+6i=0

the solutions are z=-3 z=4i and z=3 z=2i respectively. Is it just cpincidence that these solutions "correspond" to the same numerical values as is in the complex coefficient or is there some form of rule for this type of equation to quickly solve them at a glance?

Thanks

Btw i did not know wether this should go into honewirk or not. I chose not because it isnr homework and i can solve these with ease anyway lol. Just curious about different methods and speed :), cheers

-||spoon||

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