Posted by **Melissa** on Sunday, October 2, 2011 at 2:28am.

Factor

1. 8a^2-2ab-21b^2

2. 6m^2-90m+324

3.5x(2-x)+4x(2x-5)-(3x-4)

4. 9(y-1)^2-25

5. 3x^2-27(2-x)^2

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