Question

(a+b)square-(a-b)square is equal to

Answer 1

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4ab

Step-by-step explanation:

we know,

a²-b² = (a+b)(a-b)

using this formula,

(a+b)²-(a-b)² = (a+b + a-b)(a+b-a+b) = (2a)(2b) = 4ab

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