<PRE><B>Question 110211</B>
5 is common to all the terms ...5(4x^2-4x-3)


AC means take the factors of the product of a and c, and try to add them to get b


4(-3)=-12 ... factors are 1, 2, 3, 4, 6, 12 ... 2 and -6 add to -4


(4x+2)(4x-6) ... reduce coefficients by common factors (2 in this case) ...(2x+1)(2x-3)


5(2x+1)(2x-3)</PRE>