SOLUTION: Simplify: 5b^2 *(4b^2-3b) --------- 40b^3-30b^2

Question 202349: Simplify:
5b^2 *(4b^2-3b)
---------
40b^3-30b^2
Answer by PRMath(133) (Show Source): You can put this solution on YOUR website!
I think this is your problem:
/

There's probably a way to make that fraction look better but I've tried a few times and I haven't mastered it. Clearly, I need a tutor for how to make math problems look good on this website.

Anyway, if the above is your problem, here is what you do.....

Let's first focus on your denominator:

Is there a number or variable (or both) that is common to both? How about 10b? Do you see how 10b is in as well as ?

SO let's factor out that 10b......

=

So now your new problem (with the revised denominator is)....

/

Now can you see that the in the numerator will factor out the in the denominator??

SO, now you have:

and this can be reduced to

and (you are STILL not done!) this can be reduced to

I hope this helps you. :-)
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