is the polynomial x^8 - solvable by radicals

What MATLAB command will find the roots of the polynomial p(x)=x^4-8x^2-4x+3?   a. None of the other choices are correct.   b. p = [4 -8 2 -4 3]; roots(p)   c. p = [1 0 -8 -4 3]; roots(p)   d. p = [1 -8 -4 3]; roots(p)

Write a polynomial function f of the least degree that has rational coefficients, a leading coefficient of 1, and the zeros 4 and square root (6). Only type the coefficients of your answer in the blanks for the standard form: Ax^3+Bx^2+Cx+D Type negative numbers when the term is subtracted and type 0 when the term is missing.

If 1+ i is a root or zero of the polynomial x4 + x³ + 3x² – 8x + 14, find the other roots. Select one: 0 1-i,-8+음iv19, -8-8v19 o 1-i,-을+iV19, -을-iv19 o 1-i2+iv19, 를 -글iVI9 + 글iv19, ○ 1-i,-을 +글iv19,-을-글iv19 o -3+v19, -을 - 름iV19 O 1- i,