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  • Brainly User
2014-03-29T19:43:30+05:30
The discriminant(D=0) of  x^{2} +px+q=0 is zero
p^2=4q
let k be  the another root of  x^+px+12=0
and  4k=12
k=3
p=4+3=7
therefore
q= \frac{49}{4}
1 5 1
2014-03-29T19:45:53+05:30
Given that 4 is the root of the first equation  and the root of the second one is same as the first one .


So the value of the q=12
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