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Byju's Answer
Standard IX
Mathematics
Solution of Linear Equation in 2 Variables
In the follow...
Question
In the following equation, find the value of k for which the given value is a solution of the given equation, the value of k is :
k
x
2
+
√
2
x
−
4
=
0
,
x
=
√
2
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Solution
k
x
2
+
√
2
x
−
4
=
0
Substituting
x
=
√
2
,
⇒
k
(
√
2
)
2
+
√
2
√
2
−
4
=
0
⇒
2
k
+
2
−
4
=
0
⇒
2
k
−
2
=
0
⇒
2
k
=
2
∴
k
=
1
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