Question

If x2+1\x2=2, find the value of x3+1/x3.

Answer 1

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Answer 2

Answer:(x+1/xx)²-2=18

(x+1/x)²=20

(x-1/x)²+4=20

(x-1/x)²=16

x-1/x=±4

x³-1/x³=(x-1/x)³+3(x-1/)

4³+3.4

64+12

±7

Step-by-step explanation: