Question

if a and b are roots of polynomial 7x^2-2x+1 then a+b will be
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Answer 1

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2/7

Explanation:

sum of the roots= -b/a

so, according to sum,

a+b = -(-2)/7

= 2/7

Answer 2

Answer:

7x²-2x+1=0

use

formula

method

x=2±root 4-4(7)/14

x=2±root4-28/14

x=2±2root6/14 is the answer of this question