Which of the following is correct? a) (a−b)2=a2+2ab−b2 b) (a−b)2 – InterviewSolution

1.	Which of the following is correct? a) (a−b)2=a2+2ab−b2 b) (a−b)2=a2−2ab+b2 c) (a−b)2=a2−b2 d) (a+b)2=a2+2ab−b2
Answer» Which of the following is correct? a) $(a - b)^{2} = a^{2} + 2 a b - b^{2}$ b) $(a - b)^{2} = a^{2} - 2 a b + b^{2}$ c) $(a - b)^{2} = a^{2} - b^{2}$ d) $(a + b)^{2} = a^{2} + 2 a b - b^{2}$

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