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4/n^2+7n+10-1/n+5=n/n^2+7n+10
We move all terms to the left:
4/n^2+7n+10-1/n+5-(n/n^2+7n+10)=0
Domain of the equation: n^2!=0
n^2!=0/
n^2!=√0
n!=0
n∈R
Domain of the equation: n!=0
n∈R
Domain of the equation: n^2+7n+10)!=0We add all the numbers together, and all the variables
n∈R
7n+4/n^2-1/n-(n/n^2+7n+10)+15=0
We get rid of parentheses
7n+4/n^2-1/n-n/n^2-7n-10+15=0
We calculate fractions
We do not support enpression: n^3
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