If X square plus 1 by x square is equal to 9 then find x minus 1 by x
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(1) (9)^2+(x-1/x)^2= 2×53 (x-1/x)^2 =106 -81 = 25 (x-1/x) = +/-(5) , Answer. ... If x=3 and y=2, then what should be the value of 2(x-y)? ... Square the first equation, you will
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