Question

If x-2/3= 1.6, find the value of x^2 + (4/x^2)

Answer 1

Answer:

It is given that,

x=1/(4−x)

So,

x

3

+1/x

3

=(x+1/x)

2

−3(x+1/x)..(i)

For x+1/x we have:

x(4−x)=1

4x−x

2

=1

Now let us divide both sides by x, we get

4−x=1/x

4=1/x+x

1/x+x=4

x+1/x=4

By substituting the values in (i), we get

=(4)

3

−3(4)

=64−12

=52

Answer 2

Step-by-step explanation:

ANSWER IN ATTACHMENT FILE