Question

if x is equal to 3 is 1 root of the quadratic equation X square - 280 x minus 6 is equal to zero then find the value of k

Answer 1

$sum \: of \: roots \: = a + b \: \\ and \: produvt \: is \: \: \: \: ab \: \\ \\ u \: haveone \: root \: u \: cn \: \: other \: nd \: sove \: for \: k$