Question

if ( x+1/2) = 4 find the value of x^2 + 1/x2​

Answer 1

Answer:

if x++1/2=4

then 4/1-1/2=x

8/2-1/2=x

7/2=x

now x^2+1/x^2

=(7/2)^2+1/(7/2)^2=49/4+4/49=1

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