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Standard IX
Mathematics
Question
(
3
x
+
4
)
−
2
=
9
x
2
+
16
9
x
2
+
1
16
1
9
x
2
+
16
1
9
x
2
+
24
x
+
16
1
9
x
2
+
12
x
+
16
A
9
x
2
+
16
B
9
x
2
+
1
16
C
1
9
x
2
+
12
x
+
16
D
1
9
x
2
+
16
E
1
9
x
2
+
24
x
+
16
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Solution
Verified by Toppr
We meed to expand
(
3
x
+
4
)
−
2
It can written as
1
(
3
x
+
4
)
2
Now by using
(
a
+
b
)
2
=
a
2
+
2
a
b
+
b
2
, we get
(
3
x
+
4
)
2
=
9
x
2
+
16
+
24
x
So,
(
3
x
+
4
)
−
2
=
1
9
x
2
+
16
+
24
x
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0
Similar Questions
Q1
Divide
(
9
x
2
−
24
x
+
16
)
by
(
3
x
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Q2
Factorise:
9
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+
24
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Q3
Integrate:
1
√
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zeroes of
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Q5
State whether True or False:
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is
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(
3
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