This week, we learned about matrices, which was reallllyyrealllyy realllyy easy whereas what i'm attemping to learn in aleks is driving me crazy. i mess up once and then fix it because it'll be an arithmetic error or i would have just typed it wrong on the last on before its "done" but then it says "oh, do it two more times". AHHHHHHHHHHHHHH. i'm gonna show you some of this maddness.
The thing i was stuck on was a number +/- a fraction OVER another number +/- another fraction! its so confusing!
but i don't have any problems to show you! i can make one up and show you the procedure, but i'm not gonna work it all the way through because its not gonna be pretty.
5-6x/2x^2
-------------
2+3/8x
say this is your problem, you have to find a commom denominator of the fractions inside the fraction. which would be 8x^2
then you multiply everything by this common denominator!
you would get:
45x^2-48x^3/2x^2
-------------------
16x^2+8x^2/8x
then you can reduce and get:
45x^2-24x
-----------
16x^2+x
then usually on aleks, it can be factored and reduced to a simple fraction, but i'm not gonna try mine, have fun once all ya'll get to that part of the aleks.:)
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