3 years ago

SOMEONE HELP PLEASE AWNSER HONESTLY!!!

Mathematics

1 answer:

mestny [16]3 years ago

4 0

Answer:

C. -2n+3/n-4

Step-by-step explanation:

(n^2+10n+21)/(n^2+3n-28)-(3n/n-4)

(n^2+7n+3n+21)/(n^2+7n-4n-28)-(3n/(n-4)

(n(n+7)+3(n+7))/(n(n+7)-4(n+7))-(3n/n-4)

((n+7)(n+3)/(n+7)(n-4))-(3n/n-4)

(n+3/n-4)-(3n/n-4)

n+3-3n/n-4

-2n+3/n-4

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