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Byju's Answer
Standard VIII
Mathematics
Expansion of (x^2 - y^2)
Find the valu...
Question
Find the value by using formula
97
×
103
.
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Solution
97
×
103
97
=
100
−
3
103
=
100
+
3
∴
97
×
103
=
(
100
−
3
)
(
100
+
3
)
{
(
a
−
b
)
(
a
+
b
)
=
a
2
−
b
2
}
∴
(
100
)
2
−
(
3
)
2
=
10000
−
9
=
9991
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Q.
Find the value of
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Use the formula to find the values.
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Use the formula :
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