Resolver (x + 3) ^ 2 - (x + 1) ^ 2 = 12 | 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

$$(x+3)^{2}-(x+1)^{2}=12$$