Posted by traci on Wednesday, June 29, 2011 at 8:43pm.
Completely factor the following expression:100y2 â€“ 36z2

Algebra  MathMate, Wednesday, June 29, 2011 at 10:01pm
As in the previous question, factor out the numeric factors first:
100y2 â€“ 36z2
=4(25y²9z²)
Recognize that the expression is a difference of two squares, then use
(a²b²)=(a+b)(ab)
to complete the solution.
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