Question

x+1/x=3find x^3-1/x^3​

Answer 1

Answer:

-7

Step-by-step explanation:

x+1=3x

3x-x=1

2x=1

x=1/2 subtitute in given equation

(1/2)^3-1/(1/2)^3=((1/8)-1)/(1/8)

                       =(-7/8)/(1/8)

                        = -7

Answer 2

Answer:

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