Question

The value of 249^2- 248^2 is

Answer 1

Answer:

497

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Step-by-step explanation:

Now, 2492 – 2482 = (249 + 248) (249 – 248) [using identity, a2 – b2 = (a – b)(a + b)] = 497 x 1 = 497.

Answer 2

Answer:

here according to a² - b² = (a-b)(a+b)

We have,

249² -248² = (249-248)(249+248)

= 1(497)

= 497 (Answer)

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