Hello,

Let .

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We know that .

So .

Because you know all the coefficients of , calculate if it is equal to 0.

After some calculations (that you will do), it seems that it is not equal to 0.

Therefore, .

Substituting z by its value, and after some calculations (that you will do), we get :

This is a complex number. But a complex number equals to 0 if and only if the real and the imaginary parts are both equal to 0, that is to say :

This gives f and g

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I have to go out right now, so if no one else does, I'll help you find a,b,c,d, and e