Question 779278
((x^4)-1)/(x^3) =0

x^4-1 = 0  or x^3 = 0

(x^2-1)(x^2+1)=0  or x^3=0

x^2-1=0  or x = 0

(x-1)(x+1)=0  or x= 0

x = 1, x=-1 or x =0

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