SOLUTION: Subtract 5m2 + 2m + 9 from 7m2 � 5m � 8.

Question 83923: Subtract 5m2 + 2m + 9 from 7m2 � 5m � 8.

Answer by tutor_paul(519) (Show Source): You can put this solution on YOUR website!
The problem can be re-written like this:

The tricky thing is that minus sign in front of the (5m^2+2m+9). We ultimately want to simplify this by combining like terms. Think of that minus sign as a -1 multiplying each of the terms inside (5m^2+2m+9). Multiplying through by that -1 will allow us to combine terms later:

Now you can combine the m^2, m, and whole number terms like this:

And you are done.
Good Luck,
tutor_paul@yahoo.com
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