Question

x plus one upon xx plus one upon X equals to 7 ​

Answer 1

Answer:

322

Step-by-step explanation:

Given that (X+1/X)=7_____(1)

(X^3)+(1/X^3)=_____(2)

We know that

(X+1/X)^3=X^3+1/X^3+3*X*1/X*(X+1/X)

From equation (1)

(7)^3=X^3+1/X^3+3*7

343=X^3+1/X^3+21

343–21=X^3+1/X^3

X^3+1/X^3=322

This is the required Answer

Answer 2

Answer:

value is X 322 ok

Step-by-step explanation:

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