Answers

2016-01-26T01:11:41+05:30
If 2 is root of equation then from you first equation we get k=min 8 and putting value in eq 2 we get q =12
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2016-01-26T18:48:43+05:30
X2 + kx +12=0.
2 is a root of the equation.
Then, 4+2k+12=0.
Then, 2k+16=0.
So, 2k= -16.
Therefore, k= -8.
x2+kx+q=0.
x2-8k+q=0.
Equal roots, so b2 =4ac.
64=4*1*q
q=16.

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