Question

Evaluate (using identity (a+b)(a-b)=a^2-b^2. 59×61​

Answer 1

Step-by-step explanation:

Solution

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(59)

2

=(60−1)

2

(a−b)

2

=a

2

−2ab+b

2

Here a=60,b=1

(60−1)

2

=60

2

−(2)(60)(1)+12=3600−120+1

59

2

=3481

Answer 2

I hope you got well

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