Question

using identities solve (2x+y)(2x-y)​

Answer 1

Answer:

(a+b)(a-b)= a²-b²

so, (2x+y)(2x-y)= (2x)²-y² = 4x²-y² ans.

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Answer 2

$(a + b) \: (a - b) = a ^{2} - b ^{2} \\ 2x ^{2} - y ^{2} \\ 4x ^{2} - y ^{2}$

Hope it helps you ☺️

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