Asked by jennifer
factor completely
Z^2 - 18Z + 81 - 25x^2
Z^2 - 18Z + 81 - 25x^2
Answers
Answered by
bobpursley
The first three terms are a perfect square, factor that.
Now, you have a new first term squared minus 25x^2, which is the difference of two squares.
Now, you have a new first term squared minus 25x^2, which is the difference of two squares.
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