Question

(299)^2 using identity 2​

Answer 1

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Answer 2

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${(299)}^{2}$

${(300 - 1)}^{2}$

Using identity (a- b)^2 = a^2 +2ab-b^2

${300}^{2} + 2 \times 300 \times 1 - {1}^{2}$

$90000 + 600 - 1$

$89400$