Question

A minus b whole square how proved

Answer 1

Answer:

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Answer 2

Answer:

(a-b)^2= a^2 -2ab+b^2

Step-by-step explanation:

(a-b)^2

= (a-b)(a-b)

=a^2-ab-ab+b^2

= a^2 - 2ab+b^2

(Proved)