Question

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Evaluate the following using Identities
0 104 X 103
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Answer 1

Answer:

10712

Step-by-step explanation:

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Answer 2

$\tt104 \times 103 \\ \\ \tt(100 + 4)(100 + 3) \\ \\ \tt identity \: to \: be \: used \: : \: (x + a)(x + b) = {x}^{2} + (a + b)x + ab \\ \\ \tt here \: : \: \: x = 100 \: \: \: \: \: \: a = 4 \: \: \: \: \: \: b = 3 \\ \\ \tt = {100}^{2} + (4 + 3)100 + 4 \times 3 \\ \\ \tt = 10000 + (7)100 + 12 \\ \\ \tt = 10000 + 700 + 12 \\ \\ \tt = \underline{\underline{10712}}$

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