Question

the value of 249 square minus 248 square by using identity​

Answer 1

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Answer 2

The value is $(249)^2-(248)^2=497$

Step-by-step explanation:

To find : The value of 249 square minus 248 square by using identity​ ?

Solution :

The expression is $(249)^2-(248)^2$

Using algebraic identity, $a^2-b^2=(a+b)(a-b)$

Here, a=249 and b=248

$(249)^2-(248)^2=(249+248)(249-248)$

$(249)^2-(248)^2=(497)(1)$

$(249)^2-(248)^2=497$

Therefore, the value is $(249)^2-(248)^2=497$

#Learn more

51 square - 49 square identity

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