Find the value of k in quadratic equation KX(x-2)+6=0,so that they have two equal roots.
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85
for equal roots it shuld be equal to zero
ie.
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Given:
⇒
To find:
Value of k = ?
Solution:
From the given equation, we get
⇒
here,
a = k
b = -2k
c = 6
If they have two equal roots, then
⇒
On substituting the values, we get
⇒
⇒
On adding "24k" both sides, we get
⇒
⇒
⇒
⇒
Thus the value of k is "6".
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