Question

If 2 is a root of the equation
$x {}^{2} + bx + 12 = 0$
and the equation
$x {}^{2} + bx + q = 0$
Has equal roots then find the value of 'q'​

Answer 1

root=c/a
from first qu c=12
let a=x
now a/q
12/x=2
x=6
a=6
now in qu second
c=p
and a=6
then again root is 2
c/a=2
p/6=2
p=12


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