• Jun 1st 2008, 10:48 AM
gnarlycarly227
Please show all work! Thank you sooo much! (Nod)

7. [(y-1) / y^2 - 3y - 10)] - [(2y)/ y^2 + 2y - 35)]

8. [(5/3c) + 7/ 2v)] / [(c/6) - (3/cv)]
• Jun 1st 2008, 12:31 PM
masters
Quote:

Originally Posted by gnarlycarly227
Please show all work! Thank you sooo much! (Nod)

7. [(y-1) / y^2 - 3y - 10)] - [(2y)/ y^2 + 2y - 35)]

8. [(5/3c) + 7/ 2v)] / [(c/6) - (3/cv)]

Your grouping symbols have me a bit confused. Do I have it right:

7. $\frac{y-1}{y^2-3y-10}-\frac{2y}{y^2+2y-35}$

8. $\frac{\frac{5}{3c}+\frac{7}{2v}}{\frac{c}{6}-\frac{3}{cv}}$
• Jun 1st 2008, 01:47 PM
gnarlycarly227
yes you do! please help me solve it! how'd you do that?
• Jun 1st 2008, 01:55 PM
Moo
Hello !

Quote:

Originally Posted by gnarlycarly227
yes you do! please help me solve it! how'd you do that?

For the first one, notice that $y^2-3y-10=(y-5)(y+2)$ and $y^2+2y-35=(y+7)(y-5)$

Therefore, the least common multiple of the denominator is $(y-5)(y+7)(y+2)$

Does it help you go through the problem a little more ?
• Jun 2nd 2008, 10:00 AM
masters