Question

Find the value of (249)²-(248)²
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Answer 1

Answer:

$x ^{2} - {y}^{2} = (x + y)(x - y) \\ let \: x = 249 \: and \: y = 248 \\ (249)²-(248)² = (249 + 248)(249 - 248) \\ = (497)( - 1) = - 497</p><p>$

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Answer 2

Answer:

$497$

Step-by-step explanation:

(249 ²) - (248 ²) = 497