Question

A square minus 2 a b + b square ka gunankhand

Answer 1

Answer:

(a-b) ^2

Step-by-step explanation:

hope it will help you

Answer 2

a²  - 2ab  + b² = (a - b)² = ( b - a)²

Step-by-step explanation:

a²  - 2ab  + b²

= a²  - ab  - ab  + b²

= a(a - b) - b(a - b)

= (a - b)(a - b)

= (a - b)²

a²  - 2ab  + b²

= a²  - ab  - ab  + b²

= -a(-a + b) + b(-a + b)

= (-a + b)(-a + b)

= (b - a)(b - a)

= ( b - a)²

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