(a – b) _________ = a2 – 2ab + b2

Question:

(a – b) _________ = a2 – 2ab + b2

Solution:

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

(a – b) (a – b)= a × (a – b) – b × (a – b)

= a2 – ab – ba + b2

= a2 – 2ab + b2

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