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Byju's Answer
Standard VIII
Mathematics
Factorization by Using Quadratic Identities
Choose the co...
Question
Choose the correct pair.
A
a
2
+
4
a
+
4
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B
a
2
−
2
a
+
1
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C
2
(
a
2
+
1
)
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D
(
a
2
−
9
)
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E
(
a
+
1
)
2
+
(
a
−
1
)
2
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F
(
a
+
3
)
(
a
−
3
)
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G
(
a
−
1
)
2
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H
(
a
+
2
)
2
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Q.
Expand:
(i) (2a − 5b − 7c)
2
(ii) (−3a + 4b − 5c)
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(iii)
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Q.
Tick (✓) the correct answer:
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(a) (2a + 3)(3a − 2)
(b) (2a − 3)(3a + 2)
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2
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3
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3
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−
2
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(
b
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(
2
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3
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Q.
Solve
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a
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3
a
−
5
b
)
Q.
Solve
9
a
2
+
1
9
a
2
−
2
−
12
a
+
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3
a
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