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Byju's Answer
Standard X
Mathematics
Applications of Second Degree Equations
Form the quad...
Question
Form the quadratic equation whose roots are:
3
4
and
−
2
3
A
2
x
2
−
x
−
6
=
0
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B
12
x
2
−
x
−
6
=
0
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C
12
x
2
+
x
−
6
=
0
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D
2
x
2
+
x
−
6
=
0
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Solution
The correct option is
B
12
x
2
−
x
−
6
=
0
The roots of the equation are,
3
4
and
−
2
3
(
x
−
3
4
)
(
x
−
−
2
3
)
=
0
(
x
−
3
4
)
(
x
+
2
3
)
=
0
x
2
+
2
3
x
−
3
4
x
+
(
−
2
3
)
(
3
4
)
=
0
x
2
−
x
12
−
1
2
=
0
∴
12
x
2
−
x
−
6
=
0
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0
Similar questions
Q.
The quadratic equation whose one root is
(
3
+
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3
)
is
(a)
x
2
+
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x
-
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=
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(b)
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x
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(c)
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+
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(d)
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Q.
The quadratic equation having roots 2p and 2q is:
Q.
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Q.
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−
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Q.
Find the discriminant of the following quadratic equations and discuss the nature of the roots .
1.
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2
−
13
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+
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=
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2.
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=
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5.
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