SOLUTION: simplify this expression: (x-5)^3/|x-5| I have the answer:(x-5)*|x-5|, but do not know how to get there

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Question 203523: simplify this expression: (x-5)^3/|x-5|
I have the answer:(x-5)*|x-5|, but do not know how to get there

Answer by jsmallt9(3758)   (Show Source): You can put this solution on YOUR website!
One of the earliest lessons you learn about absolute value is that the absolute value of a positive number is that number. This is also true of the absolute value of 0. And finally the absolute value of a negative number is that number without its minus sign. Another way to express this is: The absolute value of a negative number is the negative of that negative number. Expressing these ideas in mathematical notation:
if , then
if , then
We will use these to simplify:

Case:
If , then so your expression becomes:

This simplifies to

Substituting in for (Remember they are equal if which is true in this case):


Case:
If , then so your expression becomes:

This simplifies to

Substituting in for (Remember they are equal if which is true in this case):


In either case we end up with .

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