<PRE><B>Question 184923</B>
1)4x2-25
4x^2-25
(2x+5)(2x-5)
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2)2x2-x-3
2x^2-x-3
(2x-3)(x+1)
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3)6x2-5x-6
6x^2-5x-6
(3x+2)(2x-3)</PRE>