(x^2-1/x^2)-7(x+1/x)= -14
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Step-by-step explanation:
=>(x² -1)/x² -(7x+7)/x=-14
=>(x² -1 -7x² -7x)/x² =-14
=>-6x²-7x-1=-14x²
=>8x²-7x-1=0
=>8x²-8x+x-1=0
=>8x(x-1)+1(x-1)=0
=>(8x+1)(x-1)=0
=>X=-1/8,1
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