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Byju's Answer
Standard VIII
Mathematics
Algebraic Identity: (x + a)(x + b) = x^2 + (a + b)x + ab
Find the foll...
Question
Find the following product by using suitable identity
102
×
104
A
10578
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B
11508
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C
10608
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D
10218
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Solution
The correct option is
B
10608
102
×
104
=
(
100
+
2
)
×
(
100
+
4
)
Using,
x
2
+
(
a
+
b
)
x
+
a
b
=
100
2
+
(
2
+
4
)
100
+
2
(
4
)
=
10000
+
600
+
8
=
10608
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Standard VIII Mathematics
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