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Mathematics 8 Online
OpenStudy (anonymous):

Add or subtract. Simplify if possible. PIC ATTACHED

OpenStudy (anonymous):

OpenStudy (pfenn1):

The trick here is to given each fraction the same denominator. What if the LCD?

OpenStudy (anonymous):

m^2-5? idk

OpenStudy (pfenn1):

Factor m^2-25

OpenStudy (anonymous):

5

OpenStudy (anonymous):

I suck at this ahh

OpenStudy (anonymous):

is it m-5 and m+5

OpenStudy (pfenn1):

\[m^2-25=(m-5)(m+5)\]

OpenStudy (anonymous):

what about the numerator

OpenStudy (pfenn1):

So if we make this the denominator, we can rewrite the expression as \[\frac{3(m-5)+8}{(m-5)(m+5)}\]Can you further simplify this?

OpenStudy (anonymous):

whats the final 3m-3/m-5(m+5)

OpenStudy (pfenn1):

Not quite.\[\frac{3(m-5)+8}{(m-5)(m+5)}=\frac{3m-15+8}{(m-5)(m+5)}=\frac{3m-7}{(m-5)(m+5)}\]

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