Question

Using identity , find 51^2+49^2​

Answer 1

Answer:

51²+49²

=> (50+1)²+(50-1)²

=> 2(50²+1²)

=> 2(2500+1)

=> 2(2501)

=> 5001

Answer 2

Your answer is -200

Step-by-step explanation:

51²-49²

now this can be solved using identity a²-b² = (a+b)(a-b)

ie (51+49)(51-49)

= (100)(2)

= 200

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