हल करना (n + 12)(n + 3) = n(n + 9) + 84 | 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

$$(n+12)(n+3)=n(n+9)+84.$$