You can take out an x
X(6x^2+5x-4)
Then factor it
X(3x+4)(2x-1)
The math I used is probably not the quickest way, but for me, the easiest.
25*5=125 25+20=45 45*7=315 125+315=440 25*4=100 440+100=540 5+7+4=16
B is your answer.
if only i knew I would love to help you sorry
