Math, asked by jems5572, 5 months ago

Expand 203 x197 using appropriate identity,

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Answered by theheartnottaken

1

Answer:

$203 \times 197 \\ \\ = (200 + 3)(200 - 3) \\ \\ = {(200)}^{2} - {3}^{2} \\ \\ = 4000 - 9 \\ \\ = 3991$

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