Roots of equation x5 - 5x4 + 9x3 - 9x2 + 5x – 1 = 0 are
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5x-5x4+9x3-9x2+5x-1=0
=> 5x +5x -20x+27x-18x-1=0
=> 10x -25x-1=0
=> -5x -1=0
=> -1=5x
=> -1/5=x ANS.
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