Math
posted by Anonymous .
Another one.
I get real confused with all this
Multiply, Simplify if possible
3x^3/11q^3 * 121q^6/9x
the answer I got was
363q^6x^3/99q^3x
can you please show me how if it is wrong

Your answer is absolutely right, but just not yet simplified.
You should see that you can divide by 3 top and bottom. That reduces the constants to 121 and 33.
Now look at the x and q terms without the constants:
x^3q^6

xq^3
Can you divide top and bottom by x? By q? By q again? 
so it is
121q^3x^2/33 
Yes!
When you get confused because there are just too many letters and numbers, try to isolate them and look at one at a time. The secret of success is getting used to being confused. :) 
Thank you

You're welcome.

I was wondering is this right by factoring here is a example of what I am learning
x^25x24/x^26x+9 * x3/x8
the answer that they got was
x+3/x3
I am so confused because there are two examples and I am not sure what is right 
x^25x24 = (x8)(x+3)
x^26x+9 = (x3)(x3)
Make sure you understand these two first!
Factoting x^2 + ax + b, you look for two numbers that ADD to a, but MULTIPLY to b. So in the first case, 6*4 = 24, but they don't add to 5, no matter where I put the minus. But 8 * 3 and 8 + 3 give me the answer I want.
I don't get the answer you give for the whole expression. Are the brackets in the right place? 
Ah. I see. I was reading it differently.
(x^25x24) (x3)
 * 
(x^26x+9) (x8)
= ((x8)(x+3)(x3))/((x3)(x3)(x8))
x8 and x3 cancel top and bottom, and leave you with:
(x+3)/(x3)
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