Respuesta :

4n² + 7n + 5n² + 9n + 8
4n² + 5n² + 7n + 9n + 8
9n² + 16n + 8
4n²+7n+5n²+9n+8
= (4n^2+ 5n^2)+ (7n+ 9n)+ 8 (combine like terms)
= 9n^2+ 16n+ 8

The final answer is 
9n^2+ 16n+ 8.
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