Question

If(x2+1)/x=5/2, find the values of(i)x-1/x(ii)x3-1/x3

Answer 1

Answer:

X = 2 or X = 1/2

Step-by-step explanation:

(X2 + 1)/x =5/2

X2 + 1 = 5/2X

X2- 5/2x +1 =0

Multiply that equation with 2

X2 -5X +2 =0

The factors are 2 and 1/2

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