SOLUTION: Completely factor the following expression:y^2-121z^2
show all work please
Algebra.Com
Question 597823: Completely factor the following expression:y^2-121z^2
show all work please
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given expression.
Rewrite as .
Notice how we have a difference of squares where in this case and .
So let's use the difference of squares formula to factor the expression:
Start with the difference of squares formula.
Plug in and .
So this shows us that factors to .
In other words .
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