SOLUTION: solve: (2m-9)(6+5m)=(10m+15)(m-2) I am not understanding how to do these!

Question 585228: solve: (2m-9)(6+5m)=(10m+15)(m-2)
I am not understanding how to do these!
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
All you have to know is this general idea:

Practice this:

Now write it this way:

Now do what I did above:

Do the addition:

It's the same as
--------------------------
Now do it a little differently

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Once you are good at this, you can do

-------
You can check this. Make or any number

Now go back to

( the same answer )
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Just practice, practice, and do this number substitution
to check results
Hope this helps
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