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Byju's Answer
Standard X
Mathematics
Roots of Quadratic Equation
The sum of al...
Question
The sum of all the real values of
x
satisfying the equation
2
(
x
−
1
)
(
x
2
+
5
x
−
50
)
=
1
is.
A
−
5
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B
16
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C
14
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D
−
4
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Solution
The correct option is
C
−
4
For
2
(
x
−
1
)
(
x
2
+
5
x
−
50
)
=
1
(
x
−
1
)
(
x
2
+
5
x
−
50
)
=
0
∴
x
−
1
=
0
or
x
2
+
5
x
−
50
=
0
If
x
−
1
=
0
⇒
x
=
1
If
x
2
+
5
x
−
50
=
0
, then
x
2
+
10
x
−
5
x
−
50
=
0
x
(
x
+
10
)
−
5
(
x
+
10
)
=
0
(
x
+
10
)
(
x
−
5
)
=
0
x
=
−
10
,
5
Real values of
x
=
−
10
,
1
,
5
sum of the real values of x
=
−
10
+
5
+
1
=
−
4
.
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