Answer:
n^2-3n-18=0
Step-by-step explanation:
n (n+4) =7 (n+2)+4
n^2+4n=7n+14+4
n^2+4n-7n-14-4=0
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Answer:
n^2-3n-18=0
Step-by-step explanation:
n (n+4) =7 (n+2)+4
n^2+4n=7n+14+4
n^2+4n-7n-14-4=0
n^2-3n-18=0