- #1
Jimmy84
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Homework Statement
1.) (a + 3b) /3ab + (a^2 b - 4ab^2) / 5a^2b^2
2.) n/(m^2) + 3/mn + 2/m
3.) Given F(x) = square root of x + 9 determine F(x+h) - F(x)/h
4.) say whether or not {(x,y) l x= y^2} is a function.
Homework Equations
The Attempt at a Solution
im having problems to find the least common multiple of the algebric expresions in the first two problems.
I think that on problem one the LCM is 15 a^2 b^2
I think that on the second problem the LCM is m^2 (mn) Is this right?
On problem 3 I don't know how to solve (square root of(x+h) +9 - square root of x+9)/ h
How can I solve that? should I use the square root's conjugate? and if so which is it?
Thanks a lot.