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Byju's Answer
Standard IX
Mathematics
Zeroes of a Polynomial
Solve the fol...
Question
Solve the following quadratic equation by factorization, the roots are
3
b
a
,
−
4
a
:
a
x
2
+
(
4
a
2
−
3
b
)
x
−
12
a
b
=
0
A
True
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B
False
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Solution
The correct option is
A
True
a
x
2
+
(
4
a
2
−
3
b
)
x
−
12
a
b
=
0
⇒
a
x
2
+
4
a
2
x
−
3
b
x
−
12
a
b
=
0
⇒
a
x
(
x
+
4
a
)
−
3
b
(
x
+
4
a
)
=
0
⇒
(
a
x
−
3
b
)
(
x
+
4
a
)
=
0
⇒
a
x
−
3
b
=
0
and
x
+
4
a
=
0
∴
x
=
3
b
a
and
x
=
−
4
a
∴
Roots given in question are correct.
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Similar questions
Q.
Solve the following quadratic equations by factorization:
a
x
2
+
4
a
2
-
3
b
x
-
12
a
b
=
0