हल करना (x^ 2 +4x)+81=[( bullet x+4)+3](x+3) | 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

$$(x^{2}+4x)+81=[(\bullet x+4)+3](x+3)$$