103×107 evaluate the following without multiply
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103 × 107 = (100 + 3) (100 + 7)
= (100)2 + (3 + 7) 100 + (3) (7)
[By using the identity where
x = 100, a = 3, and b = 7]
= 10000 + 1000 + 21
= 11021
= (100)2 + (3 + 7) 100 + (3) (7)
[By using the identity where
x = 100, a = 3, and b = 7]
= 10000 + 1000 + 21
= 11021
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