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Byju's Answer
Standard IX
Mathematics
Polynomials
If 3 a-7 b=26...
Question
If 3a - 7b = 26 and ab = 5, then the value of 9a
2
+ 49b
2
.
A
872
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B
643
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C
886
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D
516
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Solution
The correct option is
C
886
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Similar questions
Q.
If 3a - 7b = 26 and ab = 5, then the value of 9a
2
+ 49b
2
.
Q.
State True or False.
(
3
a
−
7
b
−
c
)
2
=
9
a
2
+
49
b
2
+
c
2
−
42
a
b
+
14
b
c
−
6
c
a
Q.
If
3
a
−
4
b
=
7
and
a
b
=
10
find
9
a
2
+
16
b
2
Q.
Find the value of
(
3
a
−
1
2
)
(
3
a
−
1
2
)
.
Q.
If
5
a
+
1
3
a
=
5
, then value of
9
a
2
+
1
25
a
2
is:
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