Which of the following expressions is equivalent to ?

MATHEMATICS · Single correct · CBSE · Mathematics · Polynomials · Polynomials

Problem

Which of the following expressions is equivalent to (a+b)2−(a−b)2(a + b)^2 - (a - b)^2? (a) (a+b)(a−b)(a + b)(a - b) (b) 2b22b^{2} (c) 4ab4ab (d) 2ab2ab

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