Respuesta :

kphung76127
6n^2-5n^2= n^2

n^2+7n^2= 8n^2

Final answer: 8n^2
Remember that all of these terms are like terms so you can just add/subtract coefficients.
Bryancohen
The equation is 6n^2-5n^2+7n^2. Since the exponents are the same, you can just add and subtract. 6n^2-5n^2=n^2. N^2+7n^2=8n^2. The answer to this is 8n^2. I hope this helps! :)