If 6x^2 + x - 12 = (fx + b)(cx + d), then |f| + |b| + |c| + |d| =
For a complete solution and more practice problems, see this blog:
http://magoosh.com/gmat/2012/algebra-on ... to-factor/
Choose the correct option
A) 10  B) 12  C) 15  D) 18  E) 20
6x^2+x-12 = 6x^2 + 9x -8x -12   =&gt; 3x(2x+3) -4(2x+3)   =&gt; (2x+3)(3x-4) = (fx+b)(cx+d)   Hence f=2, b=c=3, d=-4   So, 2+3+3+ |-4| = 2+3+3+4= 
<gadget id="calculator">2+3+3+4</gadget>
<output>12</output>
12   Answer 12.
<result>B</result>
If 6x^2 + x - 12 = (fx + b)(cx + d), then |f| + |b| + |c| + |d| =
For a complete solution and more practice problems, see this blog:
http://magoosh.com/gmat/2012/algebra-on ... to-factor/