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Byju's Answer
Standard IX
Mathematics
Linear Equation in 2 Variables
Solve followi...
Question
Solve following equation:
x
2
+
x
√
2
+
1
=
0
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Solution
The given equation is
x
2
+
x
√
2
+
1
=
0
⇒
√
2
x
2
+
x
+
√
2
=
0
The roots of the quadratic equation
A
x
2
+
B
x
+
C
=
0
are
x
=
−
B
±
√
B
2
−
4
A
C
2
A
for the given equation,
B
2
−
4
A
C
is
=
(
1
)
2
−
4
(
√
2
)
(
√
2
)
=
1
−
8
=
−
7
So the roots are
x
=
−
1
±
√
−
7
2
√
2
x
=
−
1
±
√
7
i
2
√
2
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