Question 127930
(x/x+1) - (2/x-1) - 1 The LCD=(x+1)(x-1)
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Multiply LCD times each fraction:
x(x+1)(x-1)/(x+1)=x(x-1)
2(x+1)(x-1)/(x-1)=2(x+1)
1(x+1)(x-1) The denominator is one so nothing cancels in the numerator.
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{{{(x(x-1)-2(x+1)-(x+1)(x-1))/((x+1)(x-1))}}}
={{{(x^2-x-2x-2-x^2+1)/((x+1)(x-1))}}}
={{{(-3x-1)/(x^2-1)}}}
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Ed