हल करना ((a)^(2)+a+1)/((a)^(2)+3a+9) | 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

$$\frac{ { a }^{ 2 } +a+1 }{ { a }^{ 2 } +3a+9 }$$