1/(x-3)+1/(x+5)=1/3
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Answer:
x = -3 or x = 7
Step-by-step explanation:
1/(x-3)+1/(x+5) = 1/3
multiplying by (x-3)(x+5) on both sides,
(x + 5) + (x -3) = (x-3)(x+5)/3
=> 2x + 2 = (x^2 -3x + 5x -15)/3
=> 6x + 6 = x^2 + 2x -15
=> x^2 + 2x - 6x - 15 - 6 = 0
=> x^2 - 4x - 21 = 0
=> x^2 - 7x + 3x - 21 = 0
=> x(x - 7) + 3(x - 7) = 0
=> (x + 3)(x -7) = 0
=> x = -3 or x = 7
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