What is \((a + b)^2 - (a - b)^2\) equal to?

A. \(2(a^2 + b^2)\)

B. \(2ab\)

C. \(4ab\)

D. \(0\)

Doubtly AI Asked 27 Oct 2026 AI-generated · not yet verified ssc cgl Save WhatsApp Report

1 answer

Best answer

Answer: C. \(4ab\)

Answer: (C) \(4ab\)

\((a + b)^2 - (a - b)^2 = (a^2 + 2ab + b^2) - (a^2 - 2ab + b^2) = 4ab\).

Doubtly AI · 27 Oct 2026 AI-generated · not yet verified Report

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