Question

x cube minus 2 x square minus x + 2 ​

Answer 1

Step-by-step explanation:

${x}^{3} - 2 {x}^{2} - x + 2 = 0 \\ {x}^{2} (x - 2) - 1(x - 2) = 0 \\ (x - 2)( {x}^{2} - 1) = 0 \\ x - 2 = 0 \: \: \: \: \: or \: \: \: \: \: {x}^{2} - 1 = 0 \\ x = 2 \: \: \: or \: {x}^{2} = 1 \\ x = 2 \: \: \: or \: x = 1 \: \: or \: \: x = - 1 \\ \\ \: zeros \: of \: this \: \: equation \: \: is \: (2) \: (1 )\: (- 1)$

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