Algebra
posted by traci on .
Completely factor the following expression:100y2 â€“ 36z2

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.