Question

evaluate using identity (557)^2-(857)^2


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Answer 1

According to me the answer is;

(557)^2-(857)^2

a² - b² = (a+b)(a-b)

a = 557

b = 857

= (557 + 857)(557 - 857)

= (1414)(-300)

−424200

Hope it helps.

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