Question no. 8.....
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(alpha+beta)= -b/a........and (alpha×beta)=c/a. (1)
(alpha+ beta)=6....................(alpha×beta)=k. (2)
Now..(a+b)^2
a^2+b^2+2ab
From (1) and (2)..
we get.
40+2k=36
2k= -4
k = -2
(alpha+ beta)=6....................(alpha×beta)=k. (2)
Now..(a+b)^2
a^2+b^2+2ab
From (1) and (2)..
we get.
40+2k=36
2k= -4
k = -2
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