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November 21, 2014

November 21, 2014

Posted by **traci** on Wednesday, June 29, 2011 at 8:43pm.

- Algebra -
**MathMate**, Wednesday, June 29, 2011 at 10:01pmAs in the previous question, factor out the numeric factors first:

100y2 â€“ 36z2

=4(25y²-9z²)

Recognize that the expression is a difference of two squares, then use

(a²-b²)=(a+b)(a-b)

to complete the solution.

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