Determine the greatest common divisor of the polynomials X4 + X? +1 and X5 + X3 + x² +1 in F[X], where Fis a field consisting of 8 elements. Select one: O The gcd is X? + 1 O The gcd is X +1 O The gcd is X3 + X +1 O The gcd is X2 + X +1 cross out cross out cross out cross out
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- If is a finite field with elements, and is a polynomial of positive degree over , find a formula for the number of elements in the ring .Write each of the following polynomials as a products of its leading coefficient and a finite number of monic irreducible polynomials over 5. State their zeros and the multiplicity of each zero. 2x3+1 3x3+2x2+x+2 3x3+x2+2x+4 2x3+4x2+3x+1 2x4+x3+3x+2 3x4+3x3+x+3 x4+x3+x2+2x+3 x4+x3+2x2+3x+2 x4+2x3+3x+4 x5+x4+3x3+2x2+4xLet Q denote the field of rational numbers, R the field of real numbers, and C the field of complex. Determine whether each of the following polynomials is irreducible over each of the indicated fields, and state all the zeroes in each of the fields. a. x22 over Q, R, and C b. x2+1 over Q, R, and C c. x2+x2 over Q, R, and C d. x2+2x+2 over Q, R, and C e. x2+x+2 over Z3, Z5, and Z7 f. x2+2x+2 over Z3, Z5, and Z7 g. x3x2+2x+2 over Z3, Z5, and Z7 h. x4+2x2+1 over Z3, Z5, and Z7
- Suppose that f(x),g(x), and h(x) are polynomials over the field F, each of which has positive degree, and that f(x)=g(x)h(x). Prove that the zeros of f(x) in F consist of the zeros of g(x) in F together with the zeros of h(x) in F.Factors each of the polynomial in Exercise 1316 as a product of its leading coefficient and a finite number of monic irreducible polynomial over the field of rational numbers. 6x4+x3+3x214x88. Prove that the characteristic of a field is either 0 or a prime.
- Use Theorem to show that each of the following polynomials is irreducible over the field of rational numbers. Theorem Irreducibility of in Suppose is a polynomial of positive degree with integral coefficients and is a prime integer that does not divide. Let Where for If is irreducible in then is irreducible in .Let F be a field and f(x)=a0+a1x+...+anxnF[x]. Prove that x1 is a factor of f(x) if and only if a0+a1+...+an=0. Prove that x+1 is a factor of f(x) if and only if a0+a1+...+(1)nan=0.Prove that if R is a field, then R has no nontrivial ideals.