The quintic equation: Why is there no closed formula?
79012
Why is it so hard to find the roots of polynomial equations?
157673
Why does Intermediate Value Theorem only consider end-points?
100319
Functional equation with strange property about irrational numbers
55095
Why can't we separate fraction powers in euler's formula?
72463
How to solve a quartic equation?
36457
Closed form for $\int \frac{1}{\sin^nx +\cos^mx}dx$
70390
is there a closed form expression for the following matrix infinite series
129454
Solution to a quadratic form
49982
Closed expression for infinite series
58212
Why doesn't the quadratic equation contain $2|a|$ in the denominator?
4357
Why does the CRT formula yield a solution of a congruence system?
21743
Why are the solutions of polynomial equations so unconstrained over the quaternions?
86228
Why doesn’t the equation "break" when we put a value $x$ while solving partial fractions?
13018
Why is $1^{\infty}$ considered to be an indeterminate form
80535
Linear congruence fill in the missing step?
139307
Closed form expression for infinite series
76175
Does the equation have a real solution...please help!