Question

13. Which one of the
following is a root
of the equation
2x⁴ - 5x³ - 3 x²+13x+9= 0?​

Answer 1

Find all the zeroes of the polynomial 2x⁴ - 9x³ + 5x² + 3x ... (a-b)^2=1/2^ 2 - 4 (-1/2) = 9/4. ... { x² -(2+√3)x -(2-√3)x +(2- √3)(2+√3)} is a factor of given ... 2x² -2x +x -1 =0