Resolver (2a + b)(a - b) + (2a - b)(a + b) | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$(2a+b)(a-b)+(2a-b)(a+b)$$