Question

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$(999) {}^{2} - (1) {}^{2}$
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Answer 1

Answer:

Answer is 998000.

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Step-by-step explanation:

${999}^{2} - {1}^{2} </p><p>[a²-b² = (a+b)(a-b) \\ = (999 + 1)(999 - 1) \\ = 1000 \times 998 \\ = 998000$