Question

find the zeroes of the polynomial x3-3x2-x+3​

Answer 1

${x}^{3} - 3 {x}^{2} - x + 3 \\ {x}^{2} (x - 3) - 1(x - 3) \\ ( {x}^{2} - 1)(x - 3) \\ (x + 1)(x - 1)(x - 3) = 0 \\ x = - 1 , + 1, + 3$