SOLUTION: I am a new student at a new school. we are learning about excluded values and simplifing expressions and i do not understand them. Here are some examples of what my homework is.

Question 456805: I am a new student at a new school. we are learning about excluded values and simplifing expressions and i do not understand them. Here are some examples of what my homework is.
state the excluded values for each
x^2-4x-12
-----------
x-6

50m2+70m
---------
30m^2-90m

simplify each expression.

m+5
---------
m^2-3m-40

21r+28
---------
14r

solve each proportion

n+4 10
---- = ----
3 5

Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
(x^2-4x-12)/(x-6)
=(x-6)(x+2)/(x-6)
=x+2
.
Ed
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