Posted by Jane on Wednesday, March 21, 2012 at 10:18pm.
I'm going to assume your problem is this:
2√108
-----
√180y
Multiply both the top and bottom by the equivalent of 1.
2√108.....√180y
----- X -------
√180y.....√180y
Now we have:
2√108 * √180y
-------------
180y
Try to find factors to reduce this radical expression:
2√(2*2*3*3*3) * √(2*2*3*3*5)
----------------------------
180y
Now we have:
2*2*3*√3 * 2*3*√5
-----------------
180y
12√3 * 6√5
----------
180y
72√15
------
180y
Reduces to:
2√15
----
5
And there you have it!
Oops! Forgot to carry the y along in both the numerator and denominator.
From this point on, here's how it works out:
Try to find factors to reduce this radical expression:
2√(2*2*3*3*3) * √(2*2*3*3*5*y)
----------------------------
180y
Now we have:
2*2*3*√3 * 2*3*√5y
-----------------
180y
12√3 * 6√5y
----------
180y
72√15y
------
180y
Reduces to:
2√15y
----
5y
Sorry for any confusion!
THANK YOU MY GOD YOU SAVED MY LIFE
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