# Polynomial Roots Calculator

The calculator will find the roots of the given polynomial and their multiplicities.

If the calculator did not compute something or you have identified an error, or you have a suggestion/feedback, please write it in the comments below.

Solve $x^{4} - 4 x^{3} + 5 x^{2} - 4 x + 4 = 0$.
Root: $2$A, multiplicity: $2$A.
Root: $- i$A, multiplicity: $1$A.
Root: $i$A, multiplicity: $1$A.