Question

using evaluate-
997square ​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

$997 {}^{2} = = = > (1000 - 3) {}^{2}$

using identity:-

$(a - b) {}^{2} = a {}^{2} - 2ab + b {}^{2}$

we can find that:-

$1000 {}^{2} - 2 \times 1000 \times 3 + 3 {}^{2}$

$1000000 - 6000 + 9$

$= 994009$

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