Resolver 3(x)^(2)+2x-6+7(x)^(2)+6x+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

$$3 { x }^{ 2 } +2x-6+7 { x }^{ 2 } +6x+9$$