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How did proving the impossibility of solving the quintic equation by radicalseffect today?
Not sure what "effects" you are looking for... But what this means is that if you ever need to find roots of a polynomial of degree five or higher, in most cases you'll have to use approximate solutions. Since polynomials of degree 3 and 4 can be solved, but doing this is quite complicated, approximate solutions are often used in those cases, as well.
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Is x3-27 equals 0 a quadratic equation?
No, it's a cubic equation. A quadratic equation contains, as its term raised to the highest power, a square. Example: x2. A cubic equation contains, as its term raised to the highest power, a cube. Example: x3. A quartic equation contains, as its term raised to the highest power, a term raised to the fourth power. Example: x4. Quintic, x5. And so, on.
How do you prove the general form of the quintic is not solvable?
A general quintic can be solved using numeric methods. It may be an approximate solution but then even the solution to x2 = 2, in decimal terms, is approximate.
What is the inverse of yx5 x4 x?
Put simply, the inverse of y=x^5+x^4+x is x=y^5+y^4+y. Unfortunately, this is a quintic function and there is no quintic formula.
Is the polynomial 4x3 plus x plus 1 constant quintic cubic and quartic?
no
Who discovered that there cannot be a quintic formula for solving quintic equations?
This was first discovered by Evariste Galois not long before his death at the age of 20 in 1832. He found that any polynomial of degree greater than 4 cannot have a general solution in terms of radicals. A field of abstract algebra evolved from his work, and is known as Galois theory.
