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3 votes

How to divide a known root out of a polynomial?

FindInstance returns a rule, not a number. Therefore you need: root = x /. FindInstance[pol == 0, x][[1]] 1/2 (-1 - I Sqrt[3]) To divide the polynomial by the ...
Daniel Huber's user avatar
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3 votes
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How to divide a known root out of a polynomial?

PolynomialQuotient is enough. I just used PolynomialQuotientRemainder to see that remainder is indeed ...
azerbajdzan's user avatar
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6 votes

How to get the analytical form of a solution to an algebraic equation?

The simplest approach relies on observation that our polynomial $x^5 + 10 x^3 + 20 x -4$ is of the fifth order with integer coefficients divisible by $2$ (beside one with the highest order power). ...
Artes's user avatar
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3 votes

How to get the analytical form of a solution to an algebraic equation?

Here is a way to do the manipulations in Mathematica/Wolfram Language: ...
ubpdqn's user avatar
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7 votes
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How to get the analytical form of a solution to an algebraic equation?

Using answer in Solving quintic in radicals QuinticToRadicals[sol[[1]]] gives Full code (see post above) ...
Nasser's user avatar
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