Question

Which factor is common in x2-1,x3+1 and x2-5x-6

Answer 1

Answer:

x= 1, -1, 6

Step-by-step explanation:

$1) {x}^{2} - 1 = 0 \\ {x}^{2} = 1 \\ x = \sqrt{1} \\ x = 1 \\ 2) {x}^{3} + 1 \\ x = \sqrt[3]{1} \\ x = - i \\ x = 1 \\ 3) {x}^{2} - 5x - 6 \\ {x}^{2} - 6x + x - 6 \\ x(x - 6) + 1(x - 6) \\ (x + 1)(x - 6) \\ x = - 1 \: \: and \: 6$

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