You can put this solution on YOUR website! 4,650=2X^2-40X+2400
2X^2-40X+2400-4650=0
2X^2-40X-2250=0
2(X^2-20X-1125)=0
2(X-45)(X+25)=0
X-45=0
X=45 ANSWER.
X-25=0
X=25 ANSWER.
THE BEST BUSINESS CHOICE WOULD BE TO MAKE 45 CHAIRS FOR $4,650 RATHER THEN ONLY 25 CHAIRS.