English, asked by Amy2512, 1 year ago

pls answer the 16th question:

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Answered by naushad6

0

21x²-2x+1/21=0
441x²-42x+1/21=0
441x²-42x+1=0
441x²-21x-21x+1=0
21x(21x-1)-1(21x-1)=0
(21x-1)(21x-1)=0
x=1/21,1/21

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