Prove that: `(a-b)^2=a^2-2ab+b^2` – InterviewSolution

InterviewSolution

1.	Prove that: `(a-b)^2=a^2-2ab+b^2`
Answer» `L.H.S. = (a-b)^2 = (a-b)(a-b)` `=aa-ab-ba-bb` `=a^2-2ab+b^2` `=R.H.S`

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