Question

if x + 1/x =7 find (x)4 + 1/(x)4​

Answer 1

Answer:

x^2 + 1/x^2 = 51 again ,by squaring both side , we get (x^2 + 1/x^2)^2 = ( 51)^2 x^4 + 1/x^4 + 2(x^2) (1/x^2) = 2601 x^4 + ...

29 votes

Answer 2

Step-by-step explanation:

x+1/x= 7

x= 7 - 1/x. find. 4x+ 1/4x

4(7-1/x)+1/4(7-1/x)

28-4/x+ 1/(28-4/x)