POLYNOMIAL class 10 last (part 8) ‪@tutorthinkinghigh‬

Find all the zeroes of (x^4 + x^3 – 23x^2 – 3x + 60), if it is given that two of its zeroes are √3 and –√3. If one zero of the polynomial x2-4x+1 is 2+√3,write the other zero. For what value of k, is 3 a zero of the polynomials 2x2+x+k ,find the value of k If α and β are the zeros of the polynomial 2x2+7x+5 , write the value of α+β+αβ If αand β are the zeros of the polynomial f(x)=6x2+x−2 ,find the value of (α/β+β/α).