Find the value of (a+b)^2 – (a-b)^2.

A2ab

B4ab

Ca^2+b^2

D2a^2+2b^2

Explanation

(a^2+2ab+b^2) – (a^2-2ab+b^2) = 4ab.

Exam Relevance

Topic: Algebra
Subtopic: Identities

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