Question

4. Find the squares of the following numbers using
the identity (a-b)^2=a^2-2ab +b^2. (495)^2​

Answer 1

Step-by-step explanation:

495 = 500 - 5

Therefore , (495)^2 = ( 500 - 5 ) ^2

= a^2 + b^2 - 2ab

= ( 500 ) ^2 + ( 5 )^2 - 2*500*-5

= 2,50,000 + 25 + 5000

= 2,55,025

so the final answer is 2,55,025

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