posted by jose .
1)Can z+6/z+1 be reduced any further?
2)Add and simplify
v/v^2+8v+16 + 4/v^2+7v+12
3)For this second binomial do you change the the sign of the second term?
Subtract and simplify
1-y/y-2 - 9y-8/2-y
Unless you use parentheses, I can not tell what is the numerator and what is the denominator in your fractions.