Math, asked by akash18401839, 1 year ago

21x²-2x+1/21=0 solve by factorisation ch-(quadratic equation).

sumikumar1714: is that /21 is for only constant or full equation? pls say fast................

Answers

Answered by sumikumar1714

441x∧2-42x+1=0

441x∧2-21x-21x+1=0

21x(21x-1)-1(21x-1)=0

(21x-1)(21x-1)=0

x=1/21,1/21

sumikumar1714: pls mark as brainliest

Raj2637: your answer have no option of brainliest

sumikumar1714: can i know the reason??

Answered by Raj2637

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

Raj2637: hloo

sumikumar1714: hloo

sumikumar1714: pls mark as brainliest

Raj2637: plz.. mark on brainliest

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