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Mathematics 9 Online
OpenStudy (anonymous):

Help??

OpenStudy (misty1212):

HI!!

OpenStudy (anonymous):

What do you need help on?

OpenStudy (misty1212):

the first denominator factors as \((n+4)(n2)\) so that is the common denominator you can use

OpenStudy (misty1212):

oops i mean it factors as \((n+4)(n+2)\)

OpenStudy (misty1212):

multiply the second term by \(\frac{n+2}{n+2}\) then the denominators will be the same and you can subtract in the numerator

OpenStudy (misty1212):

don't factor it the numerator will be \[n^2+3n+2-2n^2-4n\]

OpenStudy (misty1212):

combine like terms

OpenStudy (anonymous):

@misty1212

OpenStudy (misty1212):

no!

OpenStudy (misty1212):

it is a common mistake

OpenStudy (misty1212):

\[n^2+3n+2-2n^2-4n=\color{red}-n^2-n+2\]

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