Question

evaluate using identy (691)square
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Answer 1

Answer:

$691 {}^{2} = (700 - 9) {}^{2}$

$700 {}^{2} - 2(700)(9) + 9 {}^{2}$

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

$49000 - 12600 + 81$

$= 36481$

$hope \: it \: helps \: you$

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