Question

x+1/x=9 find the value ofx4+1/x4​

Answer 1

Explanation:

x+1÷x=9

x+1=9x

1=8x

x=1/8

then the value of x4+1/x4

==. 1/8×4+1÷1/8×4

1/2+ 2

======. 2.5 IS THE ANSWER

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Answer 2

Answer:

5/2

Explanation:

x+1/x=9;

x+1=9x;

1=8x;

x=1/8;

so;

4x+1/4x;

==4(1/8)+1/4(1/8);

==1/2+1/1/2;

==1/2+2;

==1+4(whole)/2;

==5/2;