Complex numb help (1 Viewer)

[amdspotter]

I understand part b and c but i dont get part a.

 

[CM_Tutor]

is a quadratic equation in , so the solutions of are

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there are no real solutions.

 

[icycledough]

I'm not sure if you would be required to justify it mathematically it, or if you could explain it in writing. But essentially, x^4 will always be positive, Ax^2 will always be positive (as A is strictly positive) and B must be positive. Thus, adding 3 positive numbers cannot result in a root for the equation.

 

[Drongoski]

I'm not sure if you would be required to justify it mathematically it, or if you could explain it in writing. But essentially, x^4 will always be positive, Ax^2 will always be positive (as A is strictly positive) and B must be positive. Thus, adding 3 positive numbers cannot result in a root for the equation.

That's essentially what I said before. The simplest explanation.

 

[amdspotter]

Thanks @icycledough @CM_Tutor it makes sense now