1-2/3x
-----------(fraction line for readabilitys sake)
x-4/9x
first thing I do is get the common denominator which is 27x
I multiply it around and end up with:
27x - 18/27x^2-12
then I factor it and end up with
9(3x-2)/3(9x^2-4)
the answer is supposed to be
3/3x+2
can anyone help me? thanks!
one more quick question only because my book doesnt explain things much
i have a problem that reads:
1/x+h - 1/x
---------------
h
the answer is 1/x(x+h)
im not sure how to find the common denominator with this one. i assume its x(x+h) but no matter which way i work it it just looks...wrong