You can put this solution on YOUR website! 12b^2-7b-12=
b^2-7b-144; divide by the first coefficient and multiply that same number by the last.
factor that
(b-16)(b+9)
Now divide both of those constants by 12 and reduce completely
(b-(16/12))and (b+9/12)
(b-4/3) and (b+3/4)
move the denominator to the b
(3b-4)(4b+3)ANSWER
foil it out
12b^2-7b-12