If x is equal to 3 if one root of the quadratic equation X square - 2 x minus 6 is equal to 0 then find the value of k.
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Answered by
25
ANSWER:
GIVEN,
x=3 is one root of the equation
then
x^2-2x-6=0
substitute x =3
then,
3^2-2k(3)-6=0
9-6k-6=0
6k=3
K=1/2=0.5
==================
Hope this helps you.
GIVEN,
x=3 is one root of the equation
then
x^2-2x-6=0
substitute x =3
then,
3^2-2k(3)-6=0
9-6k-6=0
6k=3
K=1/2=0.5
==================
Hope this helps you.
Answered by
10
The quetion is x square -2kx - 6 = 0
Where x = 3
Find the answer in the attachment
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