2x/x²-64y² - 1/x-8y
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![2x/x²-64y² - 1/x-8y](/uploads/image/z/663641-17-1.jpg?t=2x%2Fx%26%23178%3B-64y%26%23178%3B+-+1%2Fx-8y)
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2x/x²-64y² - 1/x-8y
2x/x²-64y² - 1/x-8y
2x/x²-64y² - 1/x-8y
2x/(x²-64y²) - 1/(x-8y)
=2x/(x+8y)(x-8y) - (x+8y)/(x+8y)(x-8y)
=(2x-x-8y)/(x+8y)(x-8y)
=(x-8y)/(x+8y)(x-8y)
=1/(x+8y)