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

$${ \left(7x+2 \right) }^{ 2 } -3x(7x+2)$$